Tunable graphene-based dual-frequency cross polarization converters

Jun Ding; Bayaner Arigong; Han Ren; Jin Shao; Mi Zhou; Yuankun Lin; Hualiang Zhang

doi:10.1117/12.2076081

16 March 2015 Tunable graphene-based dual-frequency cross polarization converters

Jun Ding, Bayaner Arigong, Han Ren, Jin Shao, Mi Zhou, Yuankun Lin, Hualiang Zhang

Proceedings Volume 9357, Physics and Simulation of Optoelectronic Devices XXIII; 93571C (2015) https://doi.org/10.1117/12.2076081
Event: SPIE OPTO, 2015, San Francisco, California, United States

Abstract

In this paper, we proposed a novel cross-polarization converter that simultaneously works at two frequencies in the reflection mode, which is constructed of an L-shape perforated graphene sheet printed on a dielectric spacer backed by a gold layer. For the normal incidence, the optical rotation at these two working frequencies originates from the simultaneous excitation of both eigenmodes characterized as the localized surface plasmon resonances. In addition, both working frequencies can be tuned within a large frequency range by varying the Fermi energy of the graphene, which opens up tremendous opportunities to develop voltage-controlled tunable devices at mid-IR frequencies.

Citation Download Citation

Jun Ding, Bayaner Arigong, Han Ren, Jin Shao, Mi Zhou, Yuankun Lin, and Hualiang Zhang "Tunable graphene-based dual-frequency cross polarization converters", Proc. SPIE 9357, Physics and Simulation of Optoelectronic Devices XXIII, 93571C (16 March 2015); https://doi.org/10.1117/12.2076081

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KEYWORDS

Graphene

Dielectric polarization

Terahertz radiation

Dielectrics

Plasmonics

Compound parabolic concentrators

Gold

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