Patterned sub-wavelength structure on vanadium oxide film enhancing dual-band absorption

Qi Li; Bingqiang Yu; Haiou Li; Zhaofeng Li; Xiaofeng Wang; Lingfeng Pan

doi:10.1117/12.2266481

8 March 2017 Patterned sub-wavelength structure on vanadium oxide film enhancing dual-band absorption

Qi Li, Bingqiang Yu, Haiou Li, Zhaofeng Li, Xiaofeng Wang, Lingfeng Pan

Proceedings Volume 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016; 1025533 (2017) https://doi.org/10.1117/12.2266481
Event: Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 2016, Jinhua, Suzhou, Chengdu, Xi'an, Wuxi, China

Abstract

We propose a sub-wavelength structure on vanadium oxide film as an extra absorption layer (i.e. absorber) based on surface plasmon resonance effects, enhancing dual-band absorption in both middle wavelength infrared (MWIR) and long wavelength infrared (LWIR) region. Simulation results show that the absorber with disk structure has two absorption peaks at wavelengths λ=4.8μm and λ=9μm with the absorption magnitudes more than 0.98 and 0.94 in MWIR and LWIR region, respectively. Similarly, simulation results show that the absorber with square structure has two absorption peaks at wavelengths λ=4.8μm and λ=9.2μm with the absorption magnitudes more than 0.99 and 0.99 in MWIR and LWIR region, respectively.

Citation Download Citation

Qi Li, Bingqiang Yu, Haiou Li, Zhaofeng Li, Xiaofeng Wang, and Lingfeng Pan "Patterned sub-wavelength structure on vanadium oxide film enhancing dual-band absorption", Proc. SPIE 10255, Selected Papers of the Chinese Society for Optical Engineering Conferences held October and November 2016, 1025533 (8 March 2017); https://doi.org/10.1117/12.2266481

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