We report numerically the efficient channeling of single photons from a single quantum emitter into guided modes of optical nanocapillary fibers (NCFs). The NCF is formed of a liquid core optical nanofiber with inner and outer diameters. We optimize the inner and outer diameters of the NCF filled with water medium by placing a single dipole source (SDS) inside. The maximum channeling efficiency of 52% is found when the radially polarized SDS is placed at the center of the NCF filled with the water medium. The optimum inner and outer diameters of the NCF are 100 nm and 360 nm for the emission wavelength of 620 nm, respectively. Additionally, we investigate the SDS position dependence inside the NCF considering experimental ambiguity in placing a single quantum emitter inside the NCF. We found that the channeling efficiency remains almost constant for the water medium at the optimum condition. The present platform may open a novel route for generating single photons in quantum technologies and detecting single cells in bio-sensing.

我们以数值方式报告了单光子从单个量子发射器到光学纳米毛细管纤维（NCF）的引导模式的有效通道。 NCF由具有内径和外径的液芯光学纳米纤维形成。我们通过在内部放置单个偶极子源 (SDS) 来优化充满水介质的 NCF 的内径和外径。当径向极化 SDS 放置在充满水介质的 NCF 中心时，发现最大通道效率为 52%。对于 620 nm 的发射波长，NCF 的最佳内径和外径分别为 100 nm 和 360 nm。此外，考虑到在 NCF 内部放置单个量子发射器的实验模糊性，我们研究了 NCF 内部的 SDS 位置依赖性。我们发现，在最佳条件下，水介质的沟道效率几乎保持恒定。本平台可能为在量子技术中生成单光子和在生物传感中检测单细胞开辟一条新途径。