Three-band perfect absorber with high refractive index sensing based on an active tunable Dirac semimetal
- 17 July 2021
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Physical Chemistry Chemical Physics
- Vol. 23 (32) , 17374-17381
Abstract
We designed a perfect absorber based on bulk Dirac semi-metallic. The minimum bandwidth is 0.02 THz, the maximum quality factor is 106, and the maximum refractive index sensitivity is 0.1525 THz RIU−1. The device can be tuned by Fermi level.Keywords
Funding Information
- National Natural Science Foundation of China (51606158, 11604311, 61705204, 21506257);)
- Science and Technology Department of Sichuan Province
- Southwest University of Science and Technology (JZ20-027, JZ20-025, CX 21-099, LX2020010)
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