光电工程, 2023, 50 (8): 230173, 网络出版: 2023-11-15
片上光学近场的远场辐射调控
Far-field radiation manipulations of on-chip optical near-fields
摘要
Abstract
Surface wave (SW), as a kind of information or energy transportation platform, can find important applications in on-chip optical devices and systems. However, the efficient and free control from near-field SW to far-field propagation wave still suffers from fundamental challenges in the field of on-chip photonics. This paper starts with an introduction of the basic principles for far-field radiation. Then it reviews the approaches to control the multiple parameters (e.g., phase, amplitude, and polarization state) of the SW’s radiation field based on the metasurface, as well as the complex far-field wavefront manipulation of the surface wave, such as the directional radiation, far-field focusing, special beam excitation, and holographic imaging. Finally, the main challenges and future developments of far-field radiation control of SWs are summarized.
陈宜臻, 潘威康, 金相宇, 何琼, 周磊, 孙树林. 片上光学近场的远场辐射调控[J]. 光电工程, 2023, 50(8): 230173. Yizhen Chen, Weikang Pan, Xiangyu Jin, Qiong He, Lei Zhou, Shulin Sun. Far-field radiation manipulations of on-chip optical near-fields[J]. Opto-Electronic Engineering, 2023, 50(8): 230173.