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首页> 外文期刊>Optical and quantum electronics >Photonic crystal slab between orthogonal polarizers: details on the guided mode resonance wavelength
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Photonic crystal slab between orthogonal polarizers: details on the guided mode resonance wavelength

机译：正交偏振片之间的光子晶体平板：关于导模共振波长的详细信息

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摘要

The transmission spectrum of a photonic crystal slab features sharp dips created by guided mode resonances. The same photonic crystal slab placed between orthogonal polarizers shows peaks at the resonances, but the peak wavelength differs from the guided mode resonance wavelength by a few nanometres. We investigate the working principle of the orthogonal polarizer setup and the origin of the wavelength difference for the case of a TE resonance. We show that the peak in the orthogonal polarizer setup is formed by light from the non-resonant TM polarization. The wavelength difference is caused by the phase shift between the resonant TE and the non-resonant TM polarization. We compare our explanation to a temporal coupled-mode approach and the use of a time-domain window function in FDTD.
机译：光子晶体平板的透射光谱具有由引导模式共振产生的急剧下降。放置在正交偏振器之间的同一光子晶体平板在共振处出现峰值，但峰值波长与导模共振波长相差几纳米。我们研究正交偏振器设置的工作原理以及TE共振情况下波长差的起因。我们显示，正交偏振器设置中的峰值是由非共振TM偏振的光形成的。波长差是由谐振TE偏振与非谐振TM偏振之间的相移引起的。我们将我们的解释与时间耦合模式方法以及FDTD中时域窗口函数的使用进行比较。

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