30 GHz optoelectronic mixing in CVD graphene
Abstract
We report an optoelectronic mixer based on chemical vapour-deposited graphene. Our device consists in a coplanar waveguide that integrates a graphene channel, passivated with an atomic layer-deposited Al2O3 film. With this new structure, 30 GHz optoelectronic mixing in commercially-available graphene is demonstrated for the first time. In particular, using a 30 GHz intensity-modulated optical signal and a 29.9 GHz electrical signal, we show frequency downconversion to 100 MHz. These results open promising perspectives in the domain of optoelectronics for radar and radio-communication systems.
- Publication:
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arXiv e-prints
- Pub Date:
- November 2015
- DOI:
- 10.48550/arXiv.1511.02791
- arXiv:
- arXiv:1511.02791
- Bibcode:
- 2015arXiv151102791M
- Keywords:
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- Condensed Matter - Mesoscale and Nanoscale Physics
- E-Print:
- 15 pages, 4 figures