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Research on Dual-Transmission Cross-Shaped Microcavity Metamaterials in the Mid-Infrared Region.
- Source :
- Plasmonics; Dec2023, Vol. 18 Issue 6, p2427-2436, 10p
- Publication Year :
- 2023
-
Abstract
- Mid-infrared detection technology is widely used in military and civilian applications with its unique advantages. The filter is the core component of the mid-infrared detection system, realizing controllable modulation of its dual-band transmission peak is an important prerequisite for optimizing detector performance. In this paper, a cross-shaped microcavity structure metamaterial based on gold material is designed to achieve mid-infrared dual-band transmission. By changing the width of the microcavity and the width of the gap, the controllable modulation of the dual-band transmission peaks is achieved, corresponding to the dual-band ranges of 3.23 ~ 3.46 μm and 4.06 ~ 4.60 μm. The maximum transmission of the resonant transmission peaks λ<subscript>I</subscript> and λ<subscript>II</subscript> can reach 94.5% and 92.6%, respectively. The corresponding FOM is up to 17.70. This study provides a theoretical basis for the preparation of dual-band transmission filters in the mid-infrared band. [ABSTRACT FROM AUTHOR]
- Subjects :
- METAMATERIALS
GSM communications
DETECTORS
Subjects
Details
- Language :
- English
- ISSN :
- 15571955
- Volume :
- 18
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- Plasmonics
- Publication Type :
- Academic Journal
- Accession number :
- 173821060
- Full Text :
- https://doi.org/10.1007/s11468-023-01950-6