Design of switchable, narrowband thermal absorption peaks in metal-vanadium-dioxide gratings

被引：13

作者：

Krishnan, Aravind ^{[1
]}

O'Gorman, Amedee B. ^{[1
]}

Povinelli, Michelle L. ^{[1
]}

机构：

[1] Univ Southern Calif, Viterbi Sch Engn, Ming Hsieh Dept Elect Engn, Los Angeles, CA 90089 USA

来源：

JOURNAL OF OPTICS | 2020年 / 22卷 / 09期

关键词：

thermal emission; narrowband absorption; switchable emission; surface plasmon resonance; aluminum gratings; vanadium dioxide; coupled mode theory; PHASE-TRANSITION; NANOANTENNAS; EMISSION; REALIZATION; EFFICIENCY; RADIATION; RESONANCE; ARRAY;

D O I：

10.1088/2040-8986/aba812

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We design structures with switchable, narrowband thermal absorption peaks, based on metallic gratings incorporating phase-change materials. An insulator-to-metal phase transition in vanadium dioxide is used to turn the coupling between a surface plasmon mode and a normally incident electromagnetic wave on and off. We analyze the limits on absorptive switching within the framework of coupled-mode theory, in order to evaluate the optimality of specific designs.

引用

页数：6

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