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首页> 外文期刊>Applied optics >Design of transmission blazed binary gratings for optical limiting with the form-birefringence theory
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Design of transmission blazed binary gratings for optical limiting with the form-birefringence theory

机译：利用形式双折射理论设计用于光学限制的透射闪耀二进制光栅

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摘要

The structure of transmission blazed binary gratings for optical limiting is designed with the form-birefringence theory. This kind of grating has subwavelength features, can imitate the transmission blazed grating effectively, and has higher efficiencies than a transmission blazed grating with a subwavelength structure. The diffraction efficiencies are calculated and analyzed. For the normal incident light with 10.6 (mu)m wavelength, the transmissivities for the designed grating at 0 deg deviation angle for TE and TM polarizations are 0.05percent and 5.09percent, respectively, which are basically identical to the results of the finite-difference time-domain method. The diffraction efficiencies of the first transmitted order for TE and TM polarizations are 93.95percent and 83.88percent, respectively.
机译：利用形式双折射理论设计了用于光限幅的透射闪耀二进制光栅的结构。这种光栅具有亚波长特征，与具有亚波长结构的透射光栅相比，可以有效地模仿透射型光栅，并且具有更高的效率。计算和分析衍射效率。对于波长为10.6μm的法向入射光，设计偏振光栅在0度偏角下的TE和TM偏振光的透射率分别为0.05％和5.09％，这与有限差分法的结果基本相同时域方法。 TE和TM偏振的第一透射级的衍射效率分别为93.95％和83.88％。

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