光学
栅栏
窄带
波长
材料科学
传输(电信)
衍射光栅
电介质
严格耦合波分析
红外线的
光学滤波器
闪耀光栅
光电子学
物理
电信
计算机科学
作者
Martin Scherr,Michael Barrow,Jamie Phillips
出处
期刊:Optics Letters
[Optica Publishing Group]
日期:2017-01-23
卷期号:42 (3): 518-518
被引量:16
摘要
We experimentally demonstrate a long-wavelength infrared narrowband transmission filter using an asymmetric subwavelength dielectric grating. A two-step grating geometry is used to define the asymmetry, which enables resonant narrowband transmission response at normal incidence. Computational modeling is used to show that varying the grating parameter dimensions can shift the transmission peak wavelength. Silicon/air gratings are experimentally demonstrated, with the peak transmission wavelength varying between 10 and 11.3 μm.
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