Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Article number | 89851E |
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<mark>Journal publication date</mark> | 7/03/2014 |
<mark>Journal</mark> | Proceedings of SPIE |
Volume | 8985 |
Publication Status | Published |
<mark>Original language</mark> | English |
Event | Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII - San Francisco, CA, United States Duration: 4/02/2014 → 6/02/2014 |
Conference | Terahertz, RF, Millimeter, and Submillimeter-Wave Technology and Applications VII |
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Country/Territory | United States |
City | San Francisco, CA |
Period | 4/02/14 → 6/02/14 |
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%.