-
Evaluation of Luminescent and Mesogenic Properties of Europium(III) Binuclear Complexes According to Quantum Chemical Calculations Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-10 K. A. Romanova, Yu. G. Galyametdinov
-
Formation of Photonic Nanojets by Two-Dimensional Microprisms Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-10 V. D. Zaitsev, S. S. Stafeev, V. V. Kotlyar
-
The Influence of Surface Roughness on Photonic-Nanojet Parameters of Dielectric Microspheres Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-10 Yu. E. Geints, E. K. Panina
-
Emission Spectra of Liquid-Jet Targets of Hexane C6H14, Dichloromethane CH2Cl2, Methylene Bromide CH3Br in the Range 4–20 nm under Pulsed Laser Excitation Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 V. E. Guseva, A. N. Nechay, A. A. Perekalov, N. N. Salashchenko, N. I. Chkhalo
Abstract The article discusses the results of studying the emission spectra of liquid hexane C6H14, dichloromethane CH2Cl2, methylene bromide CH3Br upon excitation by pulsed laser radiation. We used a Nd:YAG laser, λ = 1064 nm, τ = 5.2 ns, Epulse = 0.8 J. The spectral range of 4–20 nm was studied. We used injector with a hole 225 μm in diameter, operating in a pulsed mode to form a liquid-droplet jet
-
Luminescence of Boron Difluoride Ditoluoylmethanate. Formation of J-Aggregates Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 A. G. Mirochnik, E. V. Fedorenko, A. Yu. Beloliptsev
Abstract The processes of the formation of J-aggregates during the dissolution 2,2-difluoro-4,6-di(4'-methylphenyl)-1,3,2-dioxaborine crystals (1) and their subsequent dissociation have been studied by absorption and luminescence spectroscopy and quantum-chemical modeling. It is shown that two luminescent centers are observed in the solution 1: monomeric luminescence and luminescence of J-aggregates
-
Measurement of Two-Photon Absorption Coefficient of 1030 nm Ultrashort Laser Pulses on Natural Diamond Color Centers Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 Yu. S. Gulina
Abstract An experimental study of nonlinear absorption process of ultrashort laser pulses in bulk of natural diamond has been carried out. The results of experimental studies on measuring nonlinear transmission of 1 mm thick plane-parallel plate made of diamond irradiated with focused by micro lens (NA = 0.55 with focal length f ' = 5 mm) 0.3 and 10 ps laser pulses with 1030 nm wavelength are presented
-
Spectroscopic Investigation of Structural and Magnetic Properties of TbCr3(BO3)4 Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 N. N. Kuzmin, K. N. Boldyrev, V. V. Maltsev
Abstract The paper presents a flux crystal growth technique, studies of the structural peculiarities and the optical absorption spectra of double orthoborate TbCr3(BO3)4 with a huntite structure. The intensities of the phonon modes were used to determine the ratios of the rhombohedral and monoclinic polytypes for this compound, depending on the growth conditions. The broadband absorption spectra of
-
The Influence of the Local Environment on the Electron Accepting Ability of the Cation: Induced Lewis Acidity Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 K. V. Ezdakova (Voronina), A. V. Rudakova, I. V. Krauklis, Ya. V. Shergin, A. A. Tsyganenko
Abstract The effect of adsorption of acid gases CO2, SO2, and SO3 on the electron accepting ability of cations on the surface of calcium oxide was studied by low-temperature IR spectroscopy of adsorbed CO. It is shown that the formation of carbonate, sulfite and sulfate anions in the surface layer leads to the appearance of Lewis acid sites, the strength of which, estimated by the shift in the vibration
-
Laser Delivery and Spectral Study of a Modern Chlorine-Containing Drug for the Treatment of Onychomycosis at Laser Radiation with a Wavelength of 450 nm Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 A. V. Belikov, Y. V. Fyodorova, A. D. Kozlova, S. N. Smirnov
Abstract The possibility of active laser delivery of a modern chlorine-containing photosensitizing drug Chloderm (Chloderm, Russia) under the nail plate by laser radiation with a wavelength of 450 nm for the purpose of photodynamic therapy of onychomycosis is studied. In an in vitro experiment, sequential laser microporation of the nail plate and active delivery of the drug under the nail plate by
-
Focusing Diffraction Optics for Orbital Telescopes Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 V. V. Lider
Abstract The review is devoted to the principles, state of the art and problems of diffractive optics used to focus X-ray and γ-radiation in telescopes at orbital stations. Various multilayer structures for normal incidence telescopes, supermirrors for Wolter optics, Laue lens as a soft γ-radiation concentrator, as well as modified Fresnel zone plates for focusing radiation in a wide energy range with
-
Spectral Study of the Structure and Properties of Complexes of Unsubstituted Indoline Spiropyran with Aluminum Ions Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 N. E. Belikov, A. Yu. Lukin, S. D. Varfolomeev, I. I. Levina, L. E. Petrovskaya, O. V. Demina, V. A. Barachevsky, A. A. Khodonov
Abstract The methods of absorption electronic and NMR spectroscopy were used to study the processes of complexation during the interaction of molecules of unsubstituted indoline spiropyran with aluminum salts. The mechanism of formation and structure of complexes of two types has been established. Negative photochromism of the complex of the merocyanine form of spiropyran with aluminum ions was found
-
High-NA Focusing of Ultrashort Laser Pulses in Bulk of ZnSe Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 Yu. S. Gulina, S. I. Kudryashov, N. A. Smirnov, E. V. Kuzmin
Abstract A study of high-NA focusing process of ultrashort laser pulses in bulk of ZnSe has been carried out. It is shown that when focusing laser Gaussian beam with high-aperture lenses into a transparent medium aberration distortions occur leading to an increase in focal spot size. The results of experimental studies on ablation of front and back surfaces of a plane-parallel plate with 4 mm thickness
-
Ir Transparency of Thin Bismuth Films Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 E. Yu. Shamparov, A. L. Bugrimov, S. V. Rode, I. N. Jagrina
Abstract The infrared transmission and reflection spectra of a series of samples of bismuth films of different thicknesses on identical single-crystal silicon substrates were measured. Transmission and reflection oscillations caused by interference on the film thickness are investigated. Properties of Si-plates are estimated. Refractive index and absorption index of bismuth are calculated.
-
Pulsed RF Excitation Inductive Discharge CO2 Laser with the Radiation Energy of 1 J and High Efficiency Opt. Spectrosc. (IF 0.6) Pub Date : 2024-04-01 A. M. Razhev, E. S. Kargapol’tsev, I. A. Trunov
Abstract An efficient pulsed gas-discharge inductive CO2-laser with a radiation energy of 1.05 J has been developed for the first time. In this case, the pulse duration of the laser radiation was about 10 ms. The maximum efficiency of 21.1% was obtained at a radiation energy of 340 mJ. HF current pulses propagated along the inductor conductor and, thus, an inductive discharge was formed to create a
-
Optical Properties of Ferroelectric Films HfxZryO2 and La:HfxZryO2 according to Ellipsometry Data Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 V. N. Kruchinin, E. V. Spesivtsev, C. V. Rykhlitsky, V. A. Gritsenko, F. Mehmood, T. Mikolajick, U. Schroeder
-
Optical Properties and Photo-Heating of Aqueous Suspensions of Silicon-Based Nanocomposite Particles with Deposited Gold Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 A. V. Kornilova, S. B. Ikramova, D. U. Musayeva, A. V. Syuy, V. Yu. Timoshenko
-
Self-Organizing Half-Wave Gratings on the Surface of Silica Glass Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 S. A. Bibicheva, A. E. Rupasov, P. A. Danilov, A. A. Ionin, N. A. Smirnov, S. I. Kudryashov, S. N. Shelygina, R. A. Zakoldaev
-
Spectral Response of a Microresonator Containing a Double Quantum Dot Modified by Coulomb Interaction of Localized Electrons Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 A. V. Tsukanov
-
Noise Influence on Characteristics of Current, Flowing through Semiconductor Superlattice, in High Frequency Oscillation Mode Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 A. O. Selsky, O. I. Moskalenko, A. A. Koronovsky
-
Dependence of Photoluminescence of Carbon Dots with Different Surface Functionalization on Hydrogen Factor of Water Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 M. Yu. Khmeleva, K. A. Laptinskiy, P. S. Kasyanova, A. E. Tomskaya, T. A. Dolenko
-
Second-Harmonic Generation in the Surface Layer of a Dielectric Spheroidal Particle: II. Analysis of the Solution Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 A. A. Shamyna, V. N. Kapshai, A. I. Talkachov
-
Features of the Formation of Radiation Spectra of Two-Particle Nanosystems in a Magnetic Field Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 M. G. Kucherenko, V. M. Nalbandyan, T. M. Chmereva
-
Photooxidation of Tetrahydrobiopterin as the Basis of Vitiligo Phototherapy Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 T. A. Telegina, Yu. L. Vechtomova, M. S. Kritsky, A. S. Nizamutdinov, E. I. Madirov, D. A. Makarova, A. A. Buglak
-
Crystal-Field Levels of Sm3+ Ion in Low-Dimensional Magnetic Cu3Sm(SeO3)2O2Cl Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 S. A Klimin, E. S. Kuznetsova, P. S. Berdonosov
-
Influence of the Method of Strong Doping on Composition Uniformity and Optical Properties of LiNbO3:Mg Single Crystals Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 N. V Sidorov, H. A. Teplyakova, M. H. Palatnikov
-
Spectroscopic Study of KY3F10 Crystals Doped with Praseodymium Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 E. P. Chukalina, T. A. Igolkina, D. N. Karimov
-
Molecular Photonics of 3,3'-Diethyl-9-methylthiacarbocyanine Monomers and Dimeric Complexes with Cucurbit[8]uril Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 T. V. Fedotova, G. V. Zakharova, A. K. Chibisov
-
Vibrational Spectroscopic and Molecular Docking Studies of Amrinone, a Cardiotonic Inotropic Drug Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 Sefa Celik, Sevim Akyuz, Aysen E. Ozel, Elif Akalin
-
Low Pressure DBD in He–Ne Mixture. Spectroscopy of the Afterglow Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 V. A. Ivanov
-
Intensity Noise and Pulse Repetition Frequency Stability Measurements of a Passive Mode-Locked Cr:ZnSe Laser Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 S. O. Leonov, M. P. Frolov, Yu. V. Korostelin, Ya. K. Skasyrsky, P. Yu. Fjodorow, A. S. Shelkovnikov, V. I. Kozlovsky, A. N. Kireev, M. A. Gubin
-
Investigation of the Optical Properties of a BiFeO3/SrTiO3 Heterostructure Grown on an Al2O3(0001) Substrate by RF Cathode Sputtering Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-27 S. V. Kara-Murza, K. M. Zhidel, N. V. Korchikova, A. G. Silcheva, Yu. V. Tekhtelev, R. G. Chizhov, A. V. Pavlenko
-
Amplification of Short-Wavelength Subattopulses in a Free-Electron Laser Using Electrons Accelerated in a Laser Plasma Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 A. A. Andreev, L. A. Litvinov, K. Yu. Platonov
-
Calculations of Relativistic Stark Energies and Widths in Hydrogen-Like Ions Using the Complex-Scaling Method Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 I. A. Maltsev, D. A. Tumakov, R. V. Popov, V. M. Shabaev
Abstract The relativistic calculations of energies and widths are performed for the lowest states of hydrogen and hydrogenlike neon. The calculations are carried out using the finite-basis technique combined with the complex-scaling method. The obtained results are compared with the available nonrelativistic and relativistic data.
-
Efficient Generation of Attopulses at the Interaction of Intense Laser Radiation with Ultrathin Targets Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 A. A. Andreev, K. Yu. Platonov
-
Angular Dispersion Boost of High Order Laser Harmonics Interacting with Dense Plasma Clusters Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 A. A. Andreev, L. A. Litvinov
-
Sensitization of Europium (Eu3+) Ions by Terbium (Tb3+) in Ceramics Based on Yttrium Stabilized Cubic Zirconium Dioxide Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 A. A. Shakirova, G. A. Gusev, E. V. Dementeva, A. A. Averin, T. B. Popova, M. V. Zamoryanskaya
-
Characteristic Properties of Ceramics Luminescence Based on Cubic (ZR0.82–xHFxY0.l7Eu0.0l)O1.91 Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 A. A. Shakirova, E. V. Dementeva, T. B. Popova, M. V. Zamoryanskaya
-
Kinetics of Changing in Optical Transmittance of Palladium Nanolayers during Interaction with Hydrogen Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 V. A. Shutaev, E. A. Grebenshchikova, V. A. Matveev, N. N. Gubanova, Yu. P. Yakovlev
-
Polarization Singularities in the Interference of Three Plane Waves Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 N. N. Rosanov
-
Amplification of the Electric Area of a Pulse during Reflections from a Moving Mirror Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 N. N. Rosanov
Abstract An analysis was made of the transformation of the electric area of an electromagnetic pulse upon reflection from a moving mirror. Conditions are found under which reflection leads to an increase (in absolute value) of the electric area. For a dynamic resonator, one of the mirrors of which periodically oscillates, an expression is obtained for the threshold for generating pulses with an ever-increasing
-
Optical Studies of Quasi-Two-Dimensional Organic Metals (EDT–TTF)4[Hg3I8]1–x (x = 0 and 0.027)—Comparative Analysis within the Phase Phononsmodel Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 B. V. Petrov, M. P. Volkov
-
Electron Spin Resonance of NV(–)-Centers in Synthetic Fluorescent Diamond Microcrystals under Conditions of Optical Spin Polarization Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 V. Yu. Osipov, K. V. Bogdanov, A. Rampersaud, K. Takai, Y. Ishiguro, A. V. Baranov
-
Anisotropic Saturation of the EPR Spectrum of an DCO Radical Stabilized in Solid CO at 4.2 K and Its Orientation Motion Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 Ya. A. Dmitriev
-
Nonharmonic Spatial Population Difference Structures Created by Unipolar Rectangular Pulses in a Resonant Medium Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 R. M. Arkhipov, M. V. Arkhipov, A. V. Pakhomov, O. O. Dyachkova, N. N. Rosanov
-
Magnetic Resonance Frequency Shifts of Alkali Atoms in a K–Li Mixture Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 V. A. Kartoshkin
-
Relaxation and Polarization Oscillations in a Wide-Aperture Bistable Laser with a Saturable Absorber Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-14 Sergey V. Fedorov, N. N. Rosanov, Nikolay A. Veretenov
-
Binary Classification of Reference Micromarks Images in Probe Microscopy Using Conventional Processing Methods Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-08 P. V. Gulyaev
-
Modeling of the Origin of Saturn’s Dense (Visible) Rings Taking into Account Gravitational and Magnetic Fields. The Tchernyi‒Kapranov Effect Opt. Spectrosc. (IF 0.6) Pub Date : 2024-03-08 V. V. Tchernyi, S. V. Kapranov
-
Mathematical Models of Magnetic and Graphene Nanostructures Based on Autonomous Blocks with Floquet Channels in Microwave and THz Nanotechnologies Opt. Spectrosc. (IF 0.6) Pub Date : 2024-02-09 G. S. Makeeva, O. A. Golovanov
-
Method of Autonomous Blocks with Floquet Channels for Solving Linear and Nonlinear Problems of Diffraction for Graphene-based THz Devices Opt. Spectrosc. (IF 0.6) Pub Date : 2024-02-09 G. S. Makeeva, O. A. Golovanov
-
Mathematical Simulation of Nonlinear Parametric Processes in THz Devices based on Graphene Metamaterials Opt. Spectrosc. (IF 0.6) Pub Date : 2024-02-09 G. S. Makeeva, O. A. Golovanov
-
Modeling of the Controllability of Frequency Dispersion of Waves in Reconfigurable 3D Gratings of Ferromagnetic Nanowires in the Millimeter Wave Range Opt. Spectrosc. (IF 0.6) Pub Date : 2024-01-31 G. S. Makeeva
-
Reconfigurable Nonlinear Photonics Devices Based on Nanostructured Graphene. A Review Opt. Spectrosc. (IF 0.6) Pub Date : 2024-01-31
Abstract The relevance of the topic of the work is caused by the need for mastering the terahertz (THz) range to increase the volume of transmitted information and is dictated by the requirements of the progressing THz engineering in the development of electronically reconfigurable THz devices and antennas based on materials of new types, including graphene and graphene metamaterials and metasurfaces
-
Introduction of CdSe/ZnS Quantum Dots into a Liquid-Crystal Matrix Opt. Spectrosc. (IF 0.6) Pub Date : 2023-12-29 O. N. Karpov, Ya. I. Derikov, A. V. Finko, A. I. Saveliev, S. G. Mikhalyonok, N. M. Kuzmenok, V. S. Bezborodov, R. V. Talroze
-
Prospects for the Use of Liquid Immersion Based on Germanium Nanoparticles in IR Spectroscopy Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract Using the methods of nanosecond laser ablation in isopropyl alcohol and dry grinding of germanium, germanium nanoparticles were obtained for their possible application in liquid high-index immersion. Structural, chemical, and optical characterization of colloidal nanoparticles was carried out using scanning electron microscopy, IR spectroscopy, and energy-dispersive X-ray spectroscopy.
-
The Study of the Optical Nonlinear Properties of Bulk ZnSe for Immersion Applications Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract In this work, we study the nonlinear absorption of ultrashort laser pulses of variable duration (0.3‒10 ps) in a bulk polycrystalline ZnSe dielectric. The transmission of the sample was measured for two wavelengths, 515 and 1030 nm, in a wide range of intensities. A nonlinear behavior of the transmission is found when the sample is irradiated with laser radiation at a wavelength of 515 nm
-
New Optical Method to Study Oxygen Activity in Flowing Liquid Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract The necessity to study the oxygen activity of aqueous media in the flowing state to solve various problems has been substantiated. It has been found that emitted γ-quanta as a result of decay of 16N nuclei with energy more than 9 MeV cause the formation of additional color centers and reversible optical defects in the fiber. Their appearance leads to increased radiation-induced losses in the
-
Role of LMCT States in Luminescence Excitation Processes in Europium Indolecarboxylates Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract The luminescence excitation energy transfer in europium and terbium indole-3-carboxylates, indole-3-acetates and indole-3-propionates as well as ternary indolecarboxylates containing 1,10-phenanthroline and 2,2'-bipyridine molecules have been studied. The luminescence excitation spectra, the lifetimes of the 5D0 (Eu3+) and 5D4 (Tb3+) states, and the luminescence intensity are analyzed. The
-
Spectral-Luminescence Properties of ZrO2–Sc2O3–Tb2O3 Crystals Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract Crystals of the concentration series ZrO2–(8–10) mol % Sc2O3–(1–2) mol % Tb2O3 were grown by the method of directional crystallization of the melt from a cold container. Analysis of the spectral-luminescence characteristics of these crystals after growth and after annealing processing in a vacuum revealed the presence of both Tb3+ and Tb4+ ions in them. In crystals ZrO2–(8–10) mol % Sc2O3–(1–2)
-
Features of Raman Scattering in Lead Sulfide and Lead Sulfide-Selenide Epitaxial Films Opt. Spectrosc. (IF 0.6) Pub Date : 2023-10-01
Abstract Raman scattering spectra of 1–2 μm thick n-PbS(111) epitaxial films grown by molecular beam epitaxy on BaF2(111) substrates were obtained and analyzed. The spectra were recorded at a low excitation level of 0.36 mW/μm2, which did not cause photo- and thermal degradation of the films. It is shown that, in accordance with the symmetry selection rules, the bands in the spectra correspond to overtone