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Proceedings Paper

Polarization control by ellipse shaped photonic crystal pattern with higher absorption in VO2 film
Author(s): Zhe Wang; Wei Hong; Qian Chen; Guohua Gu
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Paper Abstract

In this paper, a photonic crystal (PC) pattern, using ellipse rods as the lattice point, is proposed to improve the absorption properties of the VO2 film. We set up a numerical model for the 2D PC patterned film and simulated the transmission property with Finite Difference Time Domain (FDTD) method. The optical absorption is achieved in near infrared by exacting Bloch mode at photonic band edge coupling the incident light from the free space to the large area resonant photonic band edge modes. The numerical simulation shows an obvious enhancement and the overall absorption is 26%. Moreover, we give a further study of the PC patterned film. Different polarization angle of light source and structure parameters are applied to study the polarization property of the film. The film shows discrepant absorption, thus the polarization control using this film can be realized further.

Paper Details

Date Published: 15 October 2015
PDF: 6 pages
Proc. SPIE 9671, AOPC 2015: Advances in Laser Technology and Applications, 96711O (15 October 2015); doi: 10.1117/12.2202683
Show Author Affiliations
Zhe Wang, Nanjing Univ. of Science and Technology (China)
Wei Hong, Nanjing Univ. of Science and Technology (China)
Qian Chen, Nanjing Univ. of Science and Technology (China)
Guohua Gu, Nanjing Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 9671:
AOPC 2015: Advances in Laser Technology and Applications
Shibin Jiang; Lijun Wang; Chun Tang; Yong Cheng, Editor(s)

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