材料科学
光束转向
栅栏
光学
氮化硅
光电子学
硅
波长
梁(结构)
相控阵光学
衍射光栅
相控阵
天线(收音机)
电信
计算机科学
物理
作者
Tianyang Fu,MA Zi-Wei,Xin Yan,Xia Zhang,Xiaomin Ren
出处
期刊:IEEE Photonics Journal
日期:2023-04-01
卷期号:15 (2): 1-8
标识
DOI:10.1109/jphot.2023.3261446
摘要
Non-uniform silicon nitride grating antennas are designed by inverse-design method. In the wavelength range of 1500-1590 nm, the non-uniform gratings exhibit a large scanning range of 13.2° and high wavelength tuning efficiency of 0.147 °/nm, nearly 2.4 times that of the uniform gratings, along with superior transmission and directionality performance. At 1550 nm, a high side mode suppression ratio of 4.32 dB is obtained for the non-uniform gratings, much higher than that of the uniform gratings (1.00 dB). This work may pave the way for the development of silicon nitride-based miniaturized optical phased arrays with excellent beam steering performance.
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