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Development and Analysis of a Multi-Wavelength Near-Infrared Sensor for Monitoring Skin Hydration and Validation Using Monte Carlo Simulation Photonic Sens. (IF 4.4) Pub Date : 2024-04-18 Iman Gidado, Raghda Al-Halawani, Meha Qassem, Panicos Kyriacou
The monitoring of an individual’s hydration levels is a vital measurement required for the maintenance of a healthy skin barrier function as well as the avoidance of dehydration. The current commercial devices for this measure are typically based on electrical methodologies, such as capacitance, which allows for the extraction of skin hydration using the ionic balance deviations in the stratum corneum
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Bio-Chemical Sensors Based on Excessively Tilted Fiber Grating Photonic Sens. (IF 4.4) Pub Date : 2024-04-18 Fudan Chen, Hong Gu, Binbin Luo, Shenghui Shi
Excessively tilted fiber gratings (ExTFGs) are a type of special optical fiber grating device different from traditional fiber Bragg gratings, long period fiber gratings, and tilted fiber Bragg gratings. Due to the excessively tilted fiber fringe structure in the fiber core, ExTFGs could couple the light of the core mode into the high-order forward-propagating cladding modes, which would split into
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Microstructured Cantilever Probe on Optical Fiber Tip for Microforce Sensor Photonic Sens. (IF 4.4) Pub Date : 2024-04-01 Famei Wang, Changrui Liao, Mengqiang Zou, Dejun Liu, Haoqiang Huang, Chao Liu, Yiping Wang
Benefiting from the great advances of the femtosecond laser two-photon polymerization (TPP) technology, customized microcantilever probes can be accurately 3-dimensional (3D) manufactured at the nanoscale size and thus have exhibited considerable potentials in the fields of microforce, micro-vibration, and microforce sensors. In this work, a controllable microstructured cantilever probe on an optical
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Liquid Crystal Based Label-Free Optical Sensors for Biochemical Application Photonic Sens. (IF 4.4) Pub Date : 2024-04-01 Jieyuan Tang, Zhibin Li, Mengyuan Xie, Yunhan Luo, Jianhui Yu, Guojie Chen, Zhe Chen
Biochemical sensors have important applications in biology, chemistry, and medicine. Nevertheless, many biochemical sensors are hampered by intricate techniques, cumbersome procedures, and the need for labeling. In the past two decades, it has been discovered that liquid crystals can be used to achieve the optical amplification of biological interactions. By modifying recognition molecules, a variety
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Review of Fiber-Optic Localized Surface Plasmon Resonance Sensors: Geometries, Fabrication Technologies, and Bio-Applications Photonic Sens. (IF 4.4) Pub Date : 2024-03-14
Abstract Localized surface plasmon resonance (LSPR) biosensors, which enable nanoscale confinement and manipulation of light, offer the enhanced sensitivity and electromagnetic energy localization. The integration of LSPR with the fiber-optic technology has led to the development of compact and versatile sensors for miniaturization and remote sensing. This comprehensive review explores various sensor
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Research on Fiber Optic Surface Plasmon Resonance Biosensors: A Review Photonic Sens. (IF 4.4) Pub Date : 2024-03-12 Qi Wang, Dianyun Zhang, Yizhuo Qian, Xiangyu Yin, Lei Wang, Shushuai Zhang, Yuyang Wang
Due to the benefits of the high sensitivity, real-time response, no labeling requirement, and good selectivity, fiber optic sensors based on surface plasmon resonance (SPR) have gained popularity in biochemical sensing in recent years. The current research on such sensors is hot in enhancing sensitivity, improving detection accuracy, and achieving the detection of biochemical molecules. The goal of
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Eu-MOF-Based Fluorescent Ratiometric Sensor by Detecting 3,4,5-Trihydroxybenzoic for Fingerprint Visualization on Porous Objects Photonic Sens. (IF 4.4) Pub Date : 2024-01-24 Muwen Liang, Yabin Zhao, Yaping Luo, Bin Du, Wei Hu, Bing Liu, Xihui Mu, Zhaoyang Tong
Latent fingerprints (LFPs) at the crime scene are served as important clues to locate the trajectory of criminal behavior and portray the characteristics of the suspect. Therefore, visualizing LFPs is of considerable significance. In this work, the europium metal-organic framework (Eu-MOF) sensor was successfully constructed for sensitive detection of gallic acid (3,4,5-trihydroxybenzoic acid, GA)
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On-Chip Sub-Picometer Continuous Wavelength Fiber-Bragg-Grating Interrogator Photonic Sens. (IF 4.4) Pub Date : 2024-01-02 Yuan Zhuang, Jun Zou, Jiqiang Zhang, Lu Zhang, Jiahe Zhang, Leixin Meng, Qing Yang
Miniaturized fiber-Bragg-grating (FBG) interrogators are of interest for applications in the areas where weight and size controlling is important, e.g., airplanes and aerospace or in-situ monitoring. An ultra-compact high-precision on-chip interrogator is proposed based on a tailored arrayed waveguide grating (AWG) on a silicon-on-insulator (SOI) platform. The on-chip interrogator enables continuous
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Fast-Response Fiber-Optic FPI Temperature Sensing System Based on Modulated Grating Y-Branch Tunable Laser Photonic Sens. (IF 4.4) Pub Date : 2023-12-02 Yang Cheung, Zhenguo Jing, Qiang Liu, Ang Li, Yueying Liu, Yihang Guo, Sen Zhang, Dapeng Zhou, Wei Peng
In this paper, a cost-effective and miniaturized instrument is proposed, which is based on a tunable modulated grating Y-branch (MG-Y) laser for rapid temperature measurement using a Fabry-Perot interferometer (FPI) sensor. The FPI sensor with a 1 463-µm cavity length is a short segment of a capillary tube sandwiched by two sections of single-mode fibers (SMFs). This system has a broad tunable range
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Investigation of Quantum Dot Color Filter Micro-LED Display Photonic Sens. (IF 4.4) Pub Date : 2023-12-01 Xuhui Peng, Yang Zeng, Sitao Huo, Zhenyuan Yang, Xiaoping Huang, Qing Zhao
In this work, we present the investigation of the quantum dot color filter (QDCF) micro-light emitting diode (micro-LED) display. Green and red quantum dot photoresist (QDPR) materials are patterned into a pixelated array and precisely bonded with an all-blue micro-light emitting diode (micro-LED) substrate, forming a red, green, and blue (RGB) full color display through color conversion. A few factors
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Vertical Displacement Measurement in a Slow-Moving Sinkhole Using BOTDA Photonic Sens. (IF 4.4) Pub Date : 2023-12-01 Pascual Sevillano, Javier Preciado-Garbayo, Jorge Sevil, Francisco Gutiérrez, Juan J. Martínez, Sonia Martín-López, Miguel González-Herráez
The effectiveness of monitoring and early-warning systems for ground deformation phenomena, such as sinkholes, depends on their ability to accurately resolve the ongoing ground displacement and detect the subtle deformation preceding catastrophic failures. Sagging sinkholes with a slow subsidence rate and diffuse edges pose a significant challenge for subsidence monitoring due to the low deformation
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Accurate Analysis of Multi-Mode Interferometric Optical Fiber Sensor Photonic Sens. (IF 4.4) Pub Date : 2023-12-01 Lijun Li, Congying Jia, Qian Ma, Tianzong Xu
In view of the problem that the sensing characteristics of the multi-mode interferometric fiber sensors cannot be accurately analyzed, an analysis method based on the fast Fourier transform (FFT) and inverse fast Fourier transform (IFFT) is proposed and demonstrated theoretically and experimentally. The suitabilities of the rectangular window function with the narrow main lobe (high spectrum resolution)
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Random Raman Fiber Laser as a Liquid Refractive Index Sensor Photonic Sens. (IF 4.4) Pub Date : 2023-12-01 Bing Han, Yuxi Ma, Han Wu, Yong Zhao
In this paper, a new concept of forward-pumped random Raman fiber laser (RRFL)-based liquid refractive index sensing is proposed for the first time. For liquid refractive index sensing, the flat fiber end immersed in the liquid can act as the point reflector for generating random fiber lasing and also as the sensing head. Due to the high sensitivity of the output power of the RRFL to the reflectivity
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Vacuum Packaging Sensor Based on Time-Resolved Phosphorescence Spectroscopy Photonic Sens. (IF 4.4) Pub Date : 2023-11-30 Esmaeil Heydari, Fatemeh Yari, Hossein Zare-Behtash
Intelligent food packaging with the multisensory analysis is promising as the next generation technology of food packaging. The oxygen content in food packaging is one of the crucial parameters affecting the food quality and shelf life. Caviar is among the most nutritious and costly food sources. Here, a photonic oxygen-sensing system, based on the time-resolved phosphorescence spectroscopy of a platinum
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Displacement Calibration of Optical Tweezers With Gravitational Acceleration Photonic Sens. (IF 4.4) Pub Date : 2023-10-14 Jianyu Yang, Nan Li, Xunmin Zhu, Ming Chen, Mian Wu, Xingfan Chen, Cheng Liu, Jian Zhuang, Huizhu Hu
In recent years, levitated particles of optical traps in vacuum have shown the enormous potential for precision sensor development and new physics exploration. However, the accuracy of the sensor is still hampered by the uncertainty of the calibration factor relating the detected signal to the absolute displacement of the trapped particle. In this paper, we suggest and experimentally demonstrate a
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MEMS and MOEMS Gyroscopes: A Review Photonic Sens. (IF 4.4) Pub Date : 2023-10-09 Wenyi Huang, Xing Yan, Sengyu Zhang, Zhe Li, Jamal N. A. Hassan, Dingwei Chen, Guangjun Wen, Kai Chen, Guangwei Deng, Yongjun Huang
Micro-gyroscopes using micro-electro-mechanical system (MEMS) and micro-opto-electro-mechanical system (MOEMS) are the new-generation and recently well-developed gyroscopes produced by the combinations of the traditional gyroscope technology and MEMS/MOEMS technologies. According to the working principle and used materials, the newly-reported micro-gyroscopes in recent years include the silicon-based
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Response of Photonic Hydrogels of Homogeneous Particles to Uranyl Ions in Aqueous Solutions Photonic Sens. (IF 4.4) Pub Date : 2023-09-27 R. G. Joshi, Deepak K. Gupta, P. Amesh, P. K. Parida, T. R. Ravindran
We study here the response of photonic hydrogels (PHs), made of photonic crystals of homogeneous silica particles in polyacrylamide hydrogels (SPHs), to the uranyl ions UO 2+2 in aqueous solutions. It is found that the reflection spectra of the SPH show a peak due to the Bragg diffraction, which exhibits a blue shift in the presence of UO 2+2 . Upon exposure to the SPH, UO 2+2 gets adsorbed on the
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Long Period Grating Imprinted on a Flat-Shaped Plastic Optical Fiber for Refractive Index Sensing Photonic Sens. (IF 4.4) Pub Date : 2023-07-25 Yuan Liu, Yanfei Zhou, Haiyang Bao, Jie Zheng
A corrugated surface long period grating (LPG) was fabricated on a flat-shaped plastic optical fiber (POF) as a refractive index (RI) sensor by a simple pressing with the heat pressure and mechanical die press print method. The light propagation characteristics of an LPG imprinted on a multi-mode POF were analyzed by the method of geometrical optics. Theoretical and experimental results showed that
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High Responsivity and Ultra-Low Detection Limits in Nonlinear a-Si:H p-i-n Photodiodes Enabled by Photogating Photonic Sens. (IF 4.4) Pub Date : 2023-07-17 Andreas Bablich, Maurice Müller, Rainer Bornemann, Andreas Nachtigal, Peter Haring Bolívar
Photodetectors operating at the wavelength in the visible spectrum are key components in high-performance optoelectronic systems. In this work, massive nonlinearities in amorphous silicon p-i-n photodiodes enabled by the photogating are presented, resulting in responsivities up to 744 mA/W at blue wavelengths. The detectors exhibit significant responsivity gains at optical modulation frequencies exceeding
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A Comprehensive Evaluation Method for Sensing Characteristics of Multi-Peak Terahertz Metamaterials Sensor in Polarization Mode Photonic Sens. (IF 4.4) Pub Date : 2023-07-13 Yuee Wang, Dongxia Li, Huiwen Luo, Zhi Li, Fangrong Hu, Huo Zhang, Lingyao Yu
In this study, the multi-peak terahertz metamaterials sensors are designed and fabricated, whose structures are the asymmetrical single split ring (SSR) and three split rings (TSR). The resonant formation and sensing mechanism of the two structures are investigated by using the finite-difference time-domain (FDTD) method. Vitamin B6 (VB6) and its reactants with bovine serum protein (BSA) are tested
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Experimental Research on Temperature Sensing of Seawater Based on Three Interferometers Incorporated With Bow Tie Fiber Photonic Sens. (IF 4.4) Pub Date : 2023-07-10 Changxin Zhai, Yu Li, Shanshan Wang, Jibo Xu, Zheng Wen, Jing Wang
Three interferometers (the Sagnac sensor, the linear polarization interferometer, and the reflecting polarization interferometer) incorporated with the bow tie fiber are proposed to detect the seawater temperature. Bow tie fiber, a kind of polarization maintaining fiber, has stress induced birefringence. The three interferometers are categorized as transmission and reflection types to analyze the sensing
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Fast In-Situ Triaxial Remanent Magnetic Field Measurement for Single-Beam SERF Atomic Magnetometer Based on Trisection Algorithm Photonic Sens. (IF 4.4) Pub Date : 2023-04-18 Tengyue Long, Bangcheng Han, Xinda Song, Yuchen Suo, Le Jia
We demonstrate a method for quickly and automatically detecting all three components of a remanent magnetic field around a shielded spin-exchange relaxation-free (SERF) atomic magnetometer (AM) using the trisection algorithm (TSA) for zero-field resonance (ZFR). To satisfy the measurement of AMs, a resonance light of the 87Rb D1 line with a spectral width of less than 1MHz is converted to circular
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A Refractive Index Sensor Based on Four-Wave Mixing in D-Shaped Tellurite Photonic Crystal Fiber Photonic Sens. (IF 4.4) Pub Date : 2023-04-15 Yuanhongliu Gao, Xin Yan, Xiaoyu Chen, Bin Li, Tonglei Cheng
In this study, we design a refractive index (RI) sensor using a novel cadmium telluride photonic crystal fiber (TPCF). Based on four-wave mixing (FWM), the changes in RI can be accurately detected, and RI sensing in the mid-infrared region (MIR) can be achieved by detecting wavelength shifts in the Stokes and anti-Stokes spectra caused by the changes in RI of the liquid to be measured. When the pump
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In-Fiber Thermally Diffused Coupler and Fiber Bragg Grating Inscribed in Twin-Core Fiber for Sensitivity-Enhanced Vector Bending Sensing Photonic Sens. (IF 4.4) Pub Date : 2023-03-27 Lingzhi Meng, Hongye Wang, Qi Xia, Tingting Yuan, Xiaotong Zhang, Libo Yuan
A vector bending fiber sensor based on core-by-core inscribed fiber Bragg gratings in a twin-core fiber has been proposed and experimentally demonstrated. An in-fiber integrated vector bending sensor is realized by using the thermal diffusion technique to fabricate the coupler. The characteristics of the coupler fabricated by thermal diffusion are simulated and experimented. By inscribing fiber Bragg
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Output Prediction of Helical Microfiber Temperature Sensors in Cycling Measurement by Deep Learning Photonic Sens. (IF 4.4) Pub Date : 2023-03-23 Minghui Chen, Jinjin Han, Juan Liu, Fangzhu Zheng, Shihang Geng, Shimeng Tang, Zhijun Wu, Jixiong Pu, Xining Zhang, Hao Dai
The inconsistent response curve of delicate micro/nanofiber (MNF) sensors during cycling measurement is one of the main factors which greatly limit their practical application. In this paper, we proposed a temperature sensor based on the copper rod-supported helical microfiber (HMF). The HMF sensors exhibited different light intensity-temperature response relationships in single-cycle measurements
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Micromachined Infrared Thermopile Detector Based on a Suspended Film Structure Photonic Sens. (IF 4.4) Pub Date : 2023-03-21 Cheng Lei, Yihao Guan, Ting Liang, Xuezhan Wu, Yuehang Bai, Mingfeng Gong, Pingang Jia, Jijun Xiong
The micro-electromechanical system (MEMS) infrared thermopile is the core working device of modern information detection systems such as spectrometers, gas sensors, and remote temperature sensors. We presented two different structures of MEMS infrared thermopiles based on suspended film structures. They both deposited silicon nitride over the entire surface as a passivated absorber layer in place of
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Feasibility of Integrating Bimetallic Au-Ag Non-Alloys Nanoparticles Embedded in Reduced Graphene Oxide Photodetector Photonic Sens. (IF 4.4) Pub Date : 2023-03-06 Nurul Syazwani Rohizat, Muhammad Nur Syafiq Mohamad Ismail, Muhammad Aiman Saufi Ahmad Fahri, Chee Leong Tan, Rozalina Zakaria
To coordinate the resonant wavelength of the plasmonic nanoparticles (NPs), the emission band of the reduced graphene oxide (rGO) photodetector at the NIR-region is crucial for the optimal plasmon-enhanced luminescence in the device. In contrast to monometallic NPs, where limits the dimensions and extended resonant wavelength, we integrated an Au-Ag bimetallic NPs (BMNPs) to enable resonance tuning
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Accounting for Polychromatic Light in Virtual Shack-Hartmann Wavefront Sensing Photonic Sens. (IF 4.4) Pub Date : 2023-03-01 Xian Yue, Yaliang Yang, Hao Dai, Shen Chen, Chao Geng, Yudong Zhang
Virtual Shack-Hartmann wavefront sensing (vSHWS) has some significant advantages and is promising for aberration measurement in the field of biomedical optical imaging. The illumination sources used in vSHWS are almost broadband, but are treated as monochromatic sources (only using center wavelength) in current data processing, which may cause errors. This work proposed a data processing method to
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Sensitivity-Enhanced Hot-Wire Anemometer by Using Cladding-Etched Fiber Bragg Grating Photonic Sens. (IF 4.4) Pub Date : 2023-02-22 Yuhan Tang, Xuke Chen, Jiarui Zhang, Dajuan Lv, Liangming Xiong, Xinyong Dong
A sensitivity-enhanced hot-wire anemometer based on a cladding-etched optical fiber Bragg grating (FBG) coated with a layer of silver film and optically heated by using a 1480 nm laser diode is demonstrated. The silver film absorbs the laser power to heat the FBG to a certain high temperature and the airflow cools down the FBG hot-wire with the cooling effect and hence the Bragg wavelength of the FBG
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High Sensitivity Temperature Sensor Based on Harmonic Vernier Effect Photonic Sens. (IF 4.4) Pub Date : 2023-02-10 Meifang He, Beibei Zhu, Zuxing Zhang
A high-sensitivity temperature sensor based on the harmonic Vernier effect is proposed and verified by experiments. The main component of the sensor is a Sagnac interferometer consisting of two sections of polarization maintaining fibers (PMFs) spliced with an intersection angle of 45° between their fast axes. The harmonic Vernier effect is achieved by setting the length of one of the PMFs an integral
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Bias-Independent Inter-Modulation Method for Simultaneously Measuring Low-Frequency Modulation and Bias Half-Wave Voltages of Mach-Zehnder Modulators Photonic Sens. (IF 4.4) Pub Date : 2023-01-16 Junfeng Zhu, Xinhai Zou, Ying Xu, Yutong He, Yali Zhang, Zhiyao Zhang, Shangjian Zhang, Yong Liu
A bias-independent inter-modulation method is proposed and demonstrated for measuring low-frequency modulation and bias half-wave voltages of Mach-Zehnder modulators (MZMs). The method consists of simultaneous sinusoidal modulation on the modulation and bias ports of the MZM under test. Sinusoidal-modulated sidebands heterodyne with each other and generate the desired inter-modulation products after
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High-Sensitivity Early Detection Biomedical Sensor for Tuberculosis With Low Losses in the Terahertz Regime Based on Photonic Crystal Fiber Technology Photonic Sens. (IF 4.4) Pub Date : 2023-01-05 Nazmi A. Mohammed, Omar E. Khedr, El-Sayed M. El-Rabaie, Ashraf A. M. Khalaf
Tuberculosis is one of the most contagious and lethal illnesses in the world, according to the World Health Organization. Tuberculosis had the leading mortality rate as a result of a single infection, ranking above HIV/AIDS. Early detection is an essential factor in patient treatment and can improve the survival rate. Detection methods should have high mobility, high accuracy, fast detection, and low
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Surface Plasmon Resonance Based Sensor for Amaranth Detection With Molecularly Imprinted Nanoparticles Photonic Sens. (IF 4.4) Pub Date : 2023-01-05 Fatma Ozge Ozgur, Duygu Çimen, Adil Denizli, Nilay Bereli
Amaranth imprinted nanoparticles were prepared by two-phase mini emulsion polymerization of hydroxyethyl methacrylate and ethylene glycol dimethacrylate using acrylamide and methacrylic acid as functional monomers. The amaranth non-imprinted nanoparticle was prepared with the same procedure without using amaranth. Amaranth imprinted and non-imprinted nanoparticles were attached on the chip surface
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High-Performance Quality Factor Based Sensor With Diagonal Cylinder Metasurface of the Bound State in the Continuum Photonic Sens. (IF 4.4) Pub Date : 2022-11-17 Yuxuan Chen, Yuke Li, Zhengda Hu, Zexiang Wang, Zhenxing Li, Jicheng Wang
High-quality-factor (high-Q-factor) electromagnetic resonance plays an important role in sensor applications. Previously proposed gas refractive index sensors are often limited by the large cavity length or microscale fabrication process in practical applications. Recently, ultra-high Q factor resonance based on the bound state in the continuum (BIC) has provided a feasible approach to solve these
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Coupling of Epsilon-Near-Zero Mode to Mushroom-Type Metamaterial for Optimizing Infrared Suppression and Radiative Cooling Photonic Sens. (IF 4.4) Pub Date : 2022-11-08 Jiacheng Li, Shuang Liu, Shenglan Wu, Yong Liu, Zhiyong Zhong
We report a complementary metal oxide semiconductor (CMOS) compatible metamaterial-based spectrally selective absorber/emitter (MBSSAE) for infrared (IR) stealth, which has the low absorption/emissivity in the IR atmospheric transmission window (3 µm–5 µm, 8 µm–14 µm) and ultra-high and broadband absorption/emissivity in the IR non-atmospheric window (5 µm–8 µm). We propose a novel method for the broadband
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A Depth Sensor Based on Transient Property of Liquid Crystal Lens Photonic Sens. (IF 4.4) Pub Date : 2022-11-04 Haifeng Xiao, Zhiqiang Liu, Baolin Tan, Mao Ye
The property of maintaining the lens state of the liquid crystal (LC) lens during the switching between positive and negative lens states is made use of in the fast acquirement of multi-focus images without magnification change. A depth from focus (DFF) pipeline that can generate a low-error depth map and an all-in-focus image is proposed. The depth of the scene is then obtained via DFF pipeline from
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Fiber Fabry-Perot Demodulation System Based on Dual Fizeau Interferometers Photonic Sens. (IF 4.4) Pub Date : 2022-10-11 Deyi Kong, Zengyu Song, Ning Wang, Zhiqi Wang, Peijian Huang, Yong Zhu, Jie Zhang
In this study, we present a dual-Fizeau-interferometer-based high-speed and wide-range fiber-optic Fabry-Perot (F-P) demodulation system. We employ two Fizeau interferometers with air cavity thickness satisfying the quadrature requirement to increase the demodulation speed and broaden the demodulation range in order to address the issues of the existing fiber F-P demodulation system’s sluggish demodulation
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Design and Investigation of a High-Sensitivity Tilt Sensor Based on FBG Photonic Sens. (IF 4.4) Pub Date : 2022-10-02 Jianjun Pan, Liangying Wang, Wei Hou, Hanyang Lv
In this paper, a high-sensitivity fiber Bragg grating (FBG) tilt sensor using a cantilever-based structure is introduced. Two FBGs are fixed on a specially designed elastomer. One end of the elastomer is connected to the mass block, and the other end is connected to the shell. The principle of the tilt sensor is introduced in detail, and the mathematical model is established. The performance of the
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Investigation of Strain-Temperature Cross-Sensitivity of FBG Strain Sensors Embedded Onto Different Substrates Photonic Sens. (IF 4.4) Pub Date : 2022-09-27 Heying Qin, Pengfei Tang, Jing Lei, Hongbin Chen, Boguang Luo
The strain-temperature cross-sensitivity problem easily occurs in the engineering strain monitoring of the self-sensing embedded with fiber Bragg grating (FBG) sensors. In this work, a theoretical investigation of the strain-temperature cross-sensitivity has been performed using the temperature reference grating method. To experimentally observe and theoretically verify the problem, the substrate materials
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A New Ratio-Metric pH Probe, “ThiAKS Green” for Live-Cell pH Measurements Photonic Sens. (IF 4.4) Pub Date : 2022-09-03 Ali Akyol, Doruk Baykal, Akın Akdağ, Özge Şensoy, Çağdaş Devrim Son
Deviation of the H+ concentration from optimum values within the organelles is closely associated with irregular cellular functions that cause the onset of various diseases. Therefore, determining subcellular pH values in live cells and tissues is valuable for diagnostic purposes. In this study, we report a novel ratiometric fluorescence probe 1H-pyrazole-3-carboxylic acid, 4-(benzo[d]thiazol-2-yl)-3-(2
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A Broadband Achromatic Dielectric Planar Metalens in Mid-IR Range Photonic Sens. (IF 4.4) Pub Date : 2022-09-03 Ye Yuan, Zilong Yan, Peifeng Zhang, Zhu Chang, Fengjiang Peng, Ruotong Chen, Zhenyuan Yang, Shizheng Chen, Qing Zhao, Xiaoping Huang
Metalens are planar lenses composed of the subwavelength arrays, which have unconventional and versatile functionalities to manipulate the light fields compared with the traditional lens. It is noted that the most metalens are designed in a monochromatic mode in the visible or mid-infrared range (mid-IR), however, the broadband range is needed in many practical applications, such as spectroscopy, sensing
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Demonstration of a ZnO-Nanowire-Based Nanograting Temperature Sensor Photonic Sens. (IF 4.4) Pub Date : 2022-07-19 Hongqian Cao, Danran Li, Kanghu Zhou, Ye Chen
In this study, we experimentally demonstrate a miniature fiber thermometer based on tip-integrated ZnO-nanowire-nanograting. The sensor has a diameter less than 1 µm and the length of the Bragg grating is sub-10 µm. The ZnO-nanowire-nanograting is sensitive to the environmental temperature change. Thus, the intensity of the light whose wavelength is in the rising or falling region of the nanograting
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Strain and Temperature Discrimination Based on a Mach-Zehnder Interferometer With Cascaded Single Mode Fibers Photonic Sens. (IF 4.4) Pub Date : 2022-07-14 Shiying Xiao, Beilei Wu, Chunran Sun, Zixiao Wang, Youchao Jiang
An in-fiber Mach-Zehnder interferometer is proposed for the discrimination of strain and temperature. The sensor is based on two cascaded standard single mode fibers using three peanut tapers fabricated by simple splicing. The cascaded structure excites more frequency components, which induce four sets of interference dips in the transmission spectrum. One set of the spectrum dips have different sensitivities
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Actual Sensing Sensitivity and SNR Measurement of Optical Tweezers Based on Coulomb Force Input Photonic Sens. (IF 4.4) Pub Date : 2022-07-15 Jiaojiao Wang, Xingfan Chen, Shaochong Zhu, Zhenhai Fu, Nan Li, Huizhu Hu
Sensing sensitivity is the key performance of optical tweezers. By adjusting the frequency and magnitude of an applied Coulomb force as an input of optical tweezers, we directly measured the sensitivity and signal-to-noise ratio (SNR) of a system and indirectly calculated the actual noise magnitude. Combined with an output filter, the relationship between the SNR and bandwidths was studied. We established
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D-Shaped Tellurite Photonic Crystal Fiber Hydrogen and Methane Sensor Based on Four-Wave Mixing With SPR Effect Photonic Sens. (IF 4.4) Pub Date : 2022-07-11 Hai Liu, Bo Wu, Cong Chen, Benlei Zhao, Xu Zhang, Hancheng Zhang
A new D-shaped tellurite photonic crystal fiber sensor based on the four-wave mixing (FWM) effect with the surface plasmon resonance (SPR) effect is designed and optimized. The substrate of the D-shaped photonic crystal fiber (D-PCF) is tellurite glass, and the polished surface is plated with the gold film and hydrogen gas-sensitive film. An air hole of the inner cladding, which is plated with the
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Side Polished Fiber: A Versatile Platform for Compact Fiber Devices and Sensors Photonic Sens. (IF 4.4) Pub Date : 2022-06-12 Linqing Zhuo, Jieyuan Tang, Wenguo Zhu, Huadan Zheng, Heyuan Guan, Huihui Lu, Yaofei Chen, Yunhan Luo, Jun Zhang, Yongchun Zhong, Jianhui Yu, Zhe Chen
Side polished fiber (SPF) has a controllable average roughness and length of the side-polishing region, which becomes a versatile platform for integrating multiple materials to interact with the evanescent field to fabricate all-fiber devices and sensors. It has been widely used in couplers, filters, polarizers, optical attenuators, photodetectors, modulators, and sensors for temperature, humidity
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High-Precision Magnetic Field Sensor Based on Fiber Bragg Grating and Dual-Loop Optoelectronic Oscillator Photonic Sens. (IF 4.4) Pub Date : 2022-06-12 Wei Sun, Xiangyu Liu, Ming Deng
A novel fiber-optic magnetic field sensor with high interrogation speed and resolution by using an etched fiber Bragg grating (FBG) in conjunction with a dual-loop optoelectronic oscillator (OEO) is proposed and experimentally demonstrated. A commercial FBG is firstly dipped into mixed hydrofluoric acid solution to remove the cladding layer and then is embedded with the magnetic fluid (MF) as a sensing
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Design of an All-Fiber Fabry-Perot Sensor for Strain Measurement in Radiative Environment Photonic Sens. (IF 4.4) Pub Date : 2022-06-12 Tingting Yang, Zengling Ran, Xiu He, Lupeng Gan, Zhengxi He, Jialiang Zhu, Peng He, Zhuoyue Li, Dong Sun
A length-matched micro Fabry-Perot (FP) interferometer is proposed for strain measurement under irradiation environment. Theoretical simulation shows that a well length-matched FP sensor can achieve a very low drift of the cavity length and strain sensitivity in irradiation environment. In experiment, such an FP cavity is realized by laser micromachining. It shows a low cavity length drift of −0.037
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Molecularly Imprinted Polymers Based Surface Plasmon Resonance Sensor for Sulfamethoxazole Detection Photonic Sens. (IF 4.4) Pub Date : 2022-04-26 Önder Kurç, Deniz Türkmen
Sulfamethoxazole (SMX) is a sulfonamide antibiotic primarily used to treat urinary tract infections and used in veterinary and industrialized husbandry to treat diseases and food additives. Like other antibiotics, SMX is considered as a pollutant in water and food that threaten local life. This study developed a surface plasmon resonance (SPR) sensor chip that is fast, highly selective, and reusable
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A Robust 2D Lidar SLAM Method in Complex Environment Photonic Sens. (IF 4.4) Pub Date : 2022-04-25 Shan Huang, Hong-Zhong Huang, Qi Zeng, Peng Huang
The two-dimensional (2D) lidar is a ranging optical sensor that can measure the cross-section of the geometric structure of the environment. We propose a robust 2D lidar simultaneous localization and mapping (SLAM) algorithm working in ambiguous environments. To improve the front-end scan-matching module’s accuracy and robustness, we propose performing degeneration analysis, line landmark tracking
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Tunable Filters Based on Cascaded Long-Period Polymer Waveguide Gratings Photonic Sens. (IF 4.4) Pub Date : 2022-04-20 Xin Shi, Rui Cao, Lingfang Wang
Long-period waveguide grating based filters have attracted attention due to their flexible fabrication, a variety of materials and structures, low back reflection, low insertion loss, and excellent performance in the tuning range and temperature sensitivity. To our knowledge, for the first time, a two-segment polymer long-period waveguide grating was cascaded to implement a filter with a narrower bandwidth
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Cascaded Random Raman Fiber Laser With Low RIN and Wide Wavelength Tunability Photonic Sens. (IF 4.4) Pub Date : 2022-04-13 Bing Han, Shisheng Dong, Yang Liu, Zinan Wang
Cascaded random Raman fiber lasers (CRRFLs) have been used as a new platform for designing high power and wavelength-agile laser sources. Recently, CRRFL pumped by ytterbium-doped random fiber laser (YRFL) has shown both high power output and low relative intensity noise (RIN). Here, by using a wavelength- and bandwidth-tunable point reflector in YRFL, we experimentally investigate the impacts of YRFL
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Transparent Object Reconstruction Based on Compressive Sensing and Super-Resolution Convolutional Neural Network Photonic Sens. (IF 4.4) Pub Date : 2022-04-06 Anumol Mathai, Li Mengdi, Stephen Lau, Ningqun Guo, Xin Wang
The detection and reconstruction of transparent objects have remained challenging due to the absence of their features and variations in the local features with variations in illumination. In this paper, both compressive sensing (CS) and super-resolution convolutional neural network (SRCNN) techniques are combined to capture transparent objects. With the proposed method, the transparent object’s details
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Research on Deformation Reconstruction Based on Structural Curvature of CFRP Propeller With Fiber Bragg Grating Sensor Network Photonic Sens. (IF 4.4) Pub Date : 2022-04-01 Guoping Ding, Fu Wang, Xiaoling Gao, Siyuan Jiang
The deformation and reconstruction of the composite propeller under the static load in the laboratory is studied so as to provide the basic research for the deformation and reconstruction of the underwater deformed propeller. The fiber Bragg grating (FBG) sensor is proposed to be used for strain monitoring and deformation reconstruction of the carbon fiber reinforced polymer (CFRP) propeller, and a
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Graphene- and Multi-Walled Carbon Nanotubes-Coated Tapered Plastic Optical Fiber for Detection of Lard Adulteration in Olive Oil Photonic Sens. (IF 4.4) Pub Date : 2022-03-21 Ika Puspita, Ninik Irawati, Kartika Anoraga Madurani, Fredy Kurniawan, Sekartedjo Koentjoro, Agus Muhamad Hatta
A rapid and high-performance sensor for lard adulterant in edible oil was developed using the tapered plastic optical fiber (POF) coated with graphene and multi-walled carbon nanotubes. The coating material was deposited onto a tapered POF with a taper waist diameter and a taper length of 0.45 mm and 1 cm, respectively. The addition of the coating material was used to increase the sensitivity and selectivity
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Alternative Interpretation of Speckle Autocorrelation Imaging Through Scattering Media Photonic Sens. (IF 4.4) Pub Date : 2022-03-17 Honglin Liu, Puxiang Lai, Jingjing Gao, Zhentao Liu, Jianhong Shi, Shensheng Han
High-resolution optical imaging through or within thick scattering media is a long sought after yet unreached goal. In the past decade, the thriving technique developments in wavefront measurement and manipulation do not significantly push the boundary forward. The optical diffusion limit is still a ceiling. In this work, we propose that a scattering medium can be conceptualized as an assembly of randomly
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Refractive Index Sensing Simulations of CsPbBr3 Quantum Dots/Gold Bilayer Coated Triangular-Lattice Photonic Crystal Fibers Photonic Sens. (IF 4.4) Pub Date : 2022-03-17 Ye Tao, Han Ye, Yong Ding, Xiaomin Ren, Xiaolong Liu
With the incorporation of noble metal materials, photonic crystal fibers (PCFs) could be performed as an effective platform for refractive index sensing of the filling analytes. Furthermore, by coating functional dielectric layers upon the metal surfaces, the resonance energy transfer is modulated from the core mode of the PCFs towards the surface plasmon resonance mode of the metals, and the sensing
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Galloping Vibration Monitoring of Overhead Transmission Lines by Chirped FBG Array Photonic Sens. (IF 4.4) Pub Date : 2022-03-17 Qizhong Yan, Ciming Zhou, Xuebin Feng, Chi Deng, Wenyu Hu, Yimin Xu
A distributed online fiber sensing system based on the phase-sensitive optical time domain reflectometer (Φ-OTDR) enhanced by the drawing tower fiber Bragg grating (FBG) array is presented and investigated experimentally for monitoring the galloping of overhead transmission lines. The chirped FBG array enhanced Φ-OTDR sensing system can be used to measure the galloping behavior of the overhead transmission
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Temperature Sensitivity of Polymer Fiber Microlasers Photonic Sens. (IF 4.4) Pub Date : 2022-03-01 Chun Wang, Xiaojuan Zhang, Jiajun Ma, Kang Xie, Junxi Zhang, Zhijia Hu
There are many kinds of materials or methods used to make optical microcavities, and they have many different geometric structures. And electrospinning technique has become a very convenient and easy one to prepare polymer fiber. Based on this situation, PM597-doped polymer solution was prepared into high-performance fibers with different diameters by electrospinning technology in our work. In order
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An Integrated-Plasmonic Chip of Bragg Reflection and Mach-Zehnder Interference Based on Metal-Insulator-Metal Waveguide Photonic Sens. (IF 4.4) Pub Date : 2022-01-18 Zeng, Liang, Li, Jiaqi, Cao, Chengyi, Li, Xudong, Zeng, Xinyuan, Yu, Quanhao, Wen, Kunhua, Yang, Jun, Qin, Yuwen
In this paper, a Bragg reflector is proposed by placing periodic metallic gratings in the center of a metal-insulator-metal (MIM) waveguide. According to the effective refractive index modulation caused by different waveguide widths in a period, a reflection channel with a large bandwidth is firstly achieved. Besides, the Mach-Zehnder interference (MZI) effect arises by shifting the gratings away from