Group velocity of light in internal conical refraction

被引：1
作者：
Wang, Pengqian [1 ]
机构：
[1] Western Illinois Univ, Dept Phys, Macomb, IL 61455 USA
来源：
APPLIED OPTICS | 2023年 / 62卷 / 16期
关键词：
ELECTROMAGNETIC PROPAGATION; OPTIC AXIS; LASER; DIFFRACTION; GENERATION; ORIENTATION; WAVELENGTH; CRYSTALS;
D O I：
10.1364/AO.491802
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We calculated the group velocity of light in internal conical refraction in a biaxial crystal as a function of the direction of the electric displacement vector, or the vibration direction, of its carrier wave. Our method represents group velocity through the electromagnetic fields of light, rather than its wave normal or ray direction. The travel time of a light pulse traversing a parallel plate biaxial crystal in internal conical refraction is found to vary as a sinusoidal function of twice the vibration angle of the light wave. Our method distinguishes the four directions of the two optic axes in monoclinic and triclinic crystals. Numerical examples are given for KNbO3 at the wavelength of 400 nm, and for Sn2P2S6 at the wavelength of 550 nm.& COPY; 2023 Optica Publishing Group
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收藏
页码：4310 / 4320
页数：11
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