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Proceedings Article

Graphene-based optical modulator realized in metamaterial split-ring resonators operating in the THz frequency range

[+] Author Affiliations
Riccardo Degl'Innocenti, David S. Jessop, Yash D. Shah, Juraj Sibik, Axel Zeitler, Piran R. Kidambi, Stephan Hofmann, Harvey E. Beere, David A. Ritchie

Univ. of Cambridge (United Kingdom)

Proc. SPIE 8985, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII, 89851E (March 7, 2014); doi:10.1117/12.2037270
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From Conference Volume 8985

  • Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII
  • Laurence P. Sadwick; Créidhe M. O'Sullivan
  • San Francisco, California, United States | February 01, 2014

abstract

The integration of quantum cascade lasers with devices capable of efficiently manipulating terahertz light, represents a fundamental step for many different applications. Split-ring resonators, sub-wavelength metamaterial elements exhibiting broad resonances that are easily tuned lithographically, represent the ideal route to achieve such optical control of the incident light. We have realized a design based on the interplay between metallic split rings and the electronic properties of a graphene monolayer integrated into a single device. By acting on the doping level of graphene, an active modulation of the optical intensity was achieved in the frequency range between 2.2 THz and 3.1 THz, with a maximum modulation depth of 18%. © (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Citation

Riccardo Degl'Innocenti ; David S. Jessop ; Yash D. Shah ; Juraj Sibik ; Axel Zeitler, et al.
" Graphene-based optical modulator realized in metamaterial split-ring resonators operating in the THz frequency range ", Proc. SPIE 8985, Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII, 89851E (March 7, 2014); doi:10.1117/12.2037270; http://dx.doi.org/10.1117/12.2037270


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