Surface plasmon-enhanced dual-band infrared absorber for VO<sub><em>x</em></sub>-based microbolometer application

Surface plasmon-enhanced dual-band infrared absorber for VO_x-based microbolometer application

Li Qi¹, Yu Bing-qiang¹, Li Zhao-feng^{2, 6, †}, Wang Xiao-feng^{3, 4, ‡}, Zhang Zi-chen^{4, 5}, Pan Ling-feng^{3, 4}

(color online) Influence of optical resonant cavity and plasmon on absorption, curve 1 shows the influence of absorber without cavity and gold disk on absorption, curve 2 shows the influence of absorber with a cavity with parameter H = 500 nm on absorption, curve 3 shows the influence of absorber with both cavity and disk with parameters H = 500 nm, , on absorption.