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Ultra-compact integrated terahertz modulator based on a graphene metasurface
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Publication Year
2021-02-01
Journal
Optics Letters
Publisher
The Optical Society
Citation
Optics Letters, Vol.46 No.3, pp.605-608
Mesh Keyword
Integrated terahertzLoss variationMetasurfaceMidinfraredModulation depthOperating wavelengthTopological characteristics
All Science Classification Codes (ASJC)
Atomic and Molecular Physics, and Optics
Abstract
We propose a new type of a mid-infrared ultra-compact optical modulator composed of a graphene metasurface. Unlike the previously proposed schemes based on loss variation of materials or interference, the proposed one utilizes the unique topological characteristic of the isofrequency contour in the hyperbolic metasurface to modulate the transmission. The designed modulator provides a modulation depth of 10.7 dB, the length of which is 750 nm, corresponding to ∼1/30 of an operating wavelength.
ISSN
1539-4794
Language
eng
URI
https://aurora.ajou.ac.kr/handle/2018.oak/31860
https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85101243383&origin=inward
DOI
https://doi.org/2-s2.0-85101243383
Journal URL
https://www.osapublishing.org/DirectPDFAccess/F4AAF6B1-D20B-45A5-A08111808C1F77B4_446905/ol-46-3-605.pdf?da=1&id=446905&seq=0&mobile=no
Type
Article
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Kim, Sangin김상인
Department of Intelligence Semiconductor Engineering
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