Mid-infrared thermal detector based on Au-disk structure and vanadium dioxide

Yudong Weng; Zhao Chen; Mingqian Zhang; Yi Zhou; Lin Xiao

doi:10.1117/12.2592174

26 January 2021 Mid-infrared thermal detector based on Au-disk structure and vanadium dioxide

Yudong Weng, Zhao Chen, Mingqian Zhang, Yi Zhou, Lin Xiao

Proceedings Volume 11767, 2020 International Conference on Optoelectronic Materials and Devices; 1176707 (2021) https://doi.org/10.1117/12.2592174
Event: 2020 International Conference on Optoelectronic Materials and Devices, 2020, Guangzhou, China

Abstract

In order to enhance the absorption of phase change materials in specific spectral range, a novel compact structure based on surface plasmon resonance is proposed, which is composed of vanadium dioxide (VO₂) film and Au-disk structure. Simulation results show that the absorption peak at λ=4.0μm with the full width at half maximum is only about 100nm, and the dependence on the structure parameters are analyzed in detail. Because the resistivity changes greatly during the phase transition of VO₂, the detection of a specific spectrum can be completed by signal detection. Our study can be used in the development of new mid-infrared thermal detectors and active control devices.

Citation Download Citation

Yudong Weng, Zhao Chen, Mingqian Zhang, Yi Zhou, and Lin Xiao "Mid-infrared thermal detector based on Au-disk structure and vanadium dioxide", Proc. SPIE 11767, 2020 International Conference on Optoelectronic Materials and Devices, 1176707 (26 January 2021); https://doi.org/10.1117/12.2592174

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