تقرير
Wide-angle giant photonic spin Hall effect
| العنوان: | Wide-angle giant photonic spin Hall effect |
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| المؤلفون: | Chen, Zhihao, Chen, Yu, Wu, Yaodong, Zhou, Xinxing, Sun, Handong, Low, Tony, Chen, Hongsheng, Lin, Xiao |
| المصدر: | Phys. Rev. B 106, 075409 (2022) |
| سنة النشر: | 2022 |
| المجموعة: | Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics, Physics - Applied Physics |
| الوصف: | Photonic spin Hall effect is a manifestation of spin-orbit interaction of light and can be measured by a transverse shift \lambda of photons with opposite spins. The precise measurement of transverse shifts can enable many spin-related applications, such as precise metrology and optical sensing. However, this transverse shift is generally small (i.e. \delta /\lambda <{10}^{-1}, \lambda is the wavelength), which impedes its precise measurement. To-date proposals to generate giant spin Hall effect (namely with \delta /\lambda >{10}^{2}) have severe limitations, particularly its occurrence only over a narrow angular cone (with a width of \Delta \theta <{1}^{\circ}). Here we propose a universal scheme to realize the wide-angle giant photonic spin Hall effect with \Delta \theta >{70}^{\circ} by exploiting the interface between free space and uniaxial epsilon-near-zero media. The underlying mechanism is ascribed to the almost-perfect polarization splitting between s and p polarized waves at the designed interface. Remarkably, this almost-perfect polarization splitting does not resort to the interference effect and is insensitive to the incident angle, which then gives rise to the wide-angle giant photonic spin Hall effect. Comment: 18 pages, 9 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.106.075409 |
| URL الوصول: | http://arxiv.org/abs/2202.10732 |
| رقم الأكسشن: | edsarx.2202.10732 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.106.075409 |
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