Simulation of polarization-dependent film with subwavelength nano-hole array

Yue Yu; Dong Wei; Huabao Long; Zhaowei Xin; Xinyu Zhang; Haiwei Wang; Changsheng Xie

doi:10.1117/12.2286330

19 February 2018 Simulation of polarization-dependent film with subwavelength nano-hole array

Yue Yu, Dong Wei, Huabao Long, Zhaowei Xin, Xinyu Zhang, Haiwei Wang, Changsheng Xie

Proceedings Volume 10607, MIPPR 2017: Multispectral Image Acquisition, Processing, and Analysis; 1060707 (2018) https://doi.org/10.1117/12.2286330
Event: Tenth International Symposium on Multispectral Image Processing and Pattern Recognition (MIPPR2017), 2017, Xiangyang, China

Abstract

When lightwave passes through a metal thin film with a periodic subwavelength hole arrays structure, its transmittance is significantly improved in the partial band compared to other wavelength. Changing the size of the hole, the period or metal material, will make the transmission curve different. Here, we add a layer of dielectric material on the surface of the metal film, such as liquid crystal(LC), by controlling voltage on LC to change the refractive index of this layer, then we can change the transmission curve, and achieve using voltage to move the transmission curve. When there is need for polarization, the holes can be made of a rectangle whose length and width are different or other shapes, for different polarization state of the light, and the film will display different transmission characteristics.

Citation Download Citation

Yue Yu, Dong Wei, Huabao Long, Zhaowei Xin, Xinyu Zhang, Haiwei Wang, and Changsheng Xie "Simulation of polarization-dependent film with subwavelength nano-hole array", Proc. SPIE 10607, MIPPR 2017: Multispectral Image Acquisition, Processing, and Analysis, 1060707 (19 February 2018); https://doi.org/10.1117/12.2286330

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KEYWORDS

Metals

Transmittance

Liquid crystals

Dielectric polarization

Dielectrics

Refractive index

Extraordinary optical transmission

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