Large-range wavelength tunable guided-mode resonance filter based on dielectric grating
Large-range wavelength tunable guided-mode resonance filter based on dielectric grating
复制标题
基于介质光栅的大范围波长可调谐导模谐振滤波器
DOI：
10.1016/j.optcom.2018.12.050
复制
发表时间：
2019-04-15
影响因子：
2.4
通讯作者：
Kong, Weijin
中科院分区：
文献类型：
--
作者：
Li, Caiyu;Zhang, Kun;Kong, Weijin
本文设计了一种基于BaK5介质光栅的大范围波长可调谐导模谐振滤波器。这种滤波器的工作波长可以通过改变入射角从491 nm主动调谐到690 nm。此外，该滤波器在工作波长处的反射效率几乎为100%，带宽很窄，在很宽的范围内边带抑制几乎为0%。我们提供了一种简单而有效的方法来主动调谐滤波器的工作波长，这可能会在可见光填充物中实现一些应用。
In this work, we design a large-range wavelength tunable guided-mode resonance filter (GMRF) based on dielectric grating symmetrically sandwiched by BaK5 substrates. The working wavelength of such a filter can be actively tuned from about 491 nm to 690 nm by changing the incident angle. Besides, the filter shows almost 100% reflection efficiency and narrow bandwidth at the working wavelength, accompanied by almost 0% sideband rejection in a wide range. We offer a simple and efficient way to actively tune the working wavelength of the filter, which may achieve some applications in visible fillers.