Incident-angle-insensitive and polarization independent polarization rotator
Incident-angle-insensitive and polarization independent polarization rotator
复制标题
入射角不敏感且与偏振无关的偏振旋转器
DOI：
10.1364/oe.18.011990
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发表时间：
2010-05-24
期刊：
影响因子：
3.8
通讯作者：
Jin, Chongjun
中科院分区：
文献类型：
--
作者：
Liu, Mingkai;Zhang, Yanbing;Jin, Chongjun
本文提出了一种设计入射角度不敏感偏振无关偏振旋转器的方法。这种偏振旋转器由阻抗匹配的各向异性超材料(IMAM)层组成，每层的光轴逐渐旋转一个角度。基于广义4×4传输矩阵法进行了数值模拟，结果表明，IMAM旋转器不仅与偏振无关，而且对入射角不敏感。在0~40度的大角度入射角范围内，仍然可以获得椭圆度变化很小的90偏振旋转，这一点在微波双分裂环谐振器(bi-SRR)旋转器中得到了进一步的证实。这可能对光电子器件和微波器件的设计有一定的参考价值。(C)2010年美国光学学会
This paper proposes a method to design an incident-angle-insensitive polarization-independent polarization rotator. This polarization rotator is composed of layers of impedance-matched anisotropic metamaterial (IMAM) with each layer's optical axes gradually rotating an angle. Numerical simulation based on the generalized 4 x 4 transfer matrix method is applied, and the results reveal that the IMAM rotator is not only polarization-independent but also insensitive to the angle of incidence. A 90 polarization rotation with tiny ellipticity variation is still available at a wide range of incident angles from 0 to 40 degrees, which is further confirmed with a microwave bi-split-ring resonator (bi-SRR) rotator. This may be valuable for the design of optoelectronic and microwave devices. (C) 2010 Optical Society of America