圆二色性
手性(物理)
圆极化
光子晶体
材料科学
线性二色性
叠加原理
二色性
极化(电化学)
光学
光子学
光电子学
结晶学
物理
化学
对称性破坏
手征对称破缺
量子力学
Nambu–Jona Lasinio模型
物理化学
微带线
作者
Wanlu Bian,Guodong Zhu,Yurui Fang
出处
期刊:Journal of Nanophotonics
[SPIE - International Society for Optical Engineering]
日期:2023-06-30
卷期号:17 (02)
标识
DOI:10.1117/1.jnp.17.026015
摘要
Chiroptical effects, which include the dichroism of left and right circularly polarized light, can be observed in structures made up of nanoscale chiral elements. We introduce a holistically nondestructive tunable chiral perforated photonic crystal film. The structure exhibits a strong photon spin selection effect at a wavelength of 810 nm, resulting in a significant circular dichroism (CD) value. The origin of the chiral response is explained using linear superposition theory, and the authors also discovered a strong chirality near-field enhancement at 796 and 810 nm, which could be used in molecular chirality sensing and other fields. By adjusting related parameters, the unit structure can greatly impact the reflection spectrum of the CD value. These chiral photonic crystal films may have potential applications as polarization management devices in the future.
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