This manuscript presents a dielectric resonator structure with altered dispersion characteristics to enhance the photonic spin Hall effect (PSHE). The structural parameters are optimized to enhance the PSHE at 632.8 nm operating wavelength. The thickness-dependent angular dispersion analysis is carried out to optimize the structure and obtain the exceptional points. The PSHE-induced spin splitting shows a high sensitivity to the optical thickness of the defect layer. This gives a maximum PSHE-based transverse displacement (PSHE-TD) of around 56.66 times the operating wavelength at an incidence angle of 61.68°. Moreover, the structure’s capability as a PSHE-based refractive index sensor is also evaluated. The analytical results demonstrate an average sensitivity of around 33,720 μm/RIU. The structure exhibits around five times higher PSHE-TD and approximately 150% improvement in sensitivity than the recently reported values in lossy mode resonance structures. Due to the purely dielectric material-assisted PhC resonator configurations and significantly higher PSHE-TD, the development of low-cost PSHE-based devices for commercial applications is envisaged.

该手稿介绍了一种具有改变色散特性的介质谐振器结构，以增强光子自旋霍尔效应 (PSHE)。优化结构参数以增强 632.8 nm 工作波长下的 PSHE。进行依赖于厚度的角色散分析以优化结构并获得异常点。PSHE 诱导的自旋分裂对缺陷层的光学厚度表现出高度的敏感性。在 61.68° 的入射角下，基于 PSHE 的最大横向位移 (PSHE-TD) 约为工作波长的 56.66 倍。此外，还评估了该结构作为基于 PSHE 的折射率传感器的能力。分析结果表明平均灵敏度约为 33,720 μm/RIU。与最近报道的有损模式共振结构的值相比，该结构的 PSHE-TD 高出约五倍，灵敏度提高了约 150%。由于纯介电材料辅助 PhC 谐振器配置和显着更高的 PSHE-TD，可以设想开发用于商业应用的低成本基于 PSHE 的设备。