Abstract
Wide-angle, broadband self-collimation (SC) is demonstrated in a hexagonal photonic crystal (PhC) fabricated in a low-refractive-index photopolymer by multiphoton lithography. The PhC can be described as a hexagonal array of cylindrical air holes in a block of dielectric material having a low-refractive index. Optical characterization shows that the device strongly self-collimates light at near-infrared wavelengths that span 1360 to 1610 nm. SC forces light to flow along the extrusion direction of the lattice without diffractive spreading, even when light couples into the device at high oblique angles. Numerical simulations corroborate the experimental findings.
© 2021 Optical Society of America
Full Article | PDF ArticleMore Like This
Ning Liang, Zengxin Huang, Chao Yan, Kunpeng Wang, and Dengfeng Kuang
Opt. Lett. 46(17) 4100-4103 (2021)
Shilin Xiong, Yue Wang, Jiayang Chen, Jinxu Zhang, and Guanhao Wu
Opt. Lett. 46(15) 3785-3788 (2021)
Rende Ma, Xiaoping Li, Hongzhong Cao, Wendi Wu, Zhongxiao Man, and Yunjie Xia
Opt. Lett. 46(18) 4658-4661 (2021)