Boye R R, Ziolkowski R W, Kostuk R K
Optical Sciences Center, University of Arizona, Tucson, Arizona 85721-0001, USA.
Appl Opt. 1999 Aug 20;38(24):5181-5. doi: 10.1364/ao.38.005181.
The design and analysis of a dielectric guided-mode resonance filter (GMRF) utilizing a nonlinear material for the waveguide is presented. Small changes to the parameters of a GMRF have a large impact on its resonance. A nonlinear material can provide a small change in the refractive index of the waveguide, altering the resonance of the device and resulting in modulation of the transmitted and reflected output of the filter. Numerical results show that nonlinear switching from 100% transmission to 100% reflection can be accomplished with less than 100 kW/cm(2) using a simple design.
本文介绍了一种利用非线性材料作为波导的介质导模共振滤波器(GMRF)的设计与分析。GMRF参数的微小变化会对其共振产生很大影响。非线性材料可使波导的折射率发生微小变化,从而改变器件的共振,进而导致滤波器透射和反射输出的调制。数值结果表明,采用简单设计,在小于100kW/cm²的情况下即可实现从100%透射率到100%反射率的非线性切换。