Multi-layered graphene based optically tunable terahertz absorber

Grebenchukov, Alexander N.; Novoselov, Mikhail G.; Zaitsev, Anton D.; Kovalska, Evgeniya O.; Baldycheva, Anna V.; Khodzitsky, Mikhail K. (2019-10-21)
 
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https://doi.org/10.1109/IRMMW-THz.2019.8874522

Grebenchukov, Alexander N.
Novoselov, Mikhail G.
Zaitsev, Anton D.
Kovalska, Evgeniya O.
Baldycheva, Anna V.
Khodzitsky, Mikhail K.
Institute of Electrical and Electronics Engineers
21.10.2019

A. N. Grebenchukov, M. G. Novoselov, A. D. Zaitsev, E. O. Kovalska, A. V. Baldycheva and M. K. Khodzitsky, "Multi-layered Graphene Based Optically Tunable Terahertz Absorber," 2019 44th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Paris, France, 2019, pp. 1-2, doi: 10.1109/IRMMW-THz.2019.8874522

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doi:https://doi.org/10.1109/IRMMW-THz.2019.8874522
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https://urn.fi/URN:NBN:fi-fe202102175105
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Abstract

We present a broadband tunable terahertz (THz) absorber, which consists of cross-shaped multi-layered graphene (MLG) resonators. The proposed absorber possesses almost perfect absorption over the range 0.4—0.8 THz and can be easily fabricated. Dynamical tuning of absorption band is achieved by external optical pumping of modest intensity. This multi-layered graphene-based absorber has high potential for various THz applications.

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