30 GHz optoelectronic mixing in CVD graphene
Autor: | Montanaro, A., Mzali, S., Mazellier, J. -P., Bezencenet, O., Larat, C., Molin, S., Legagneux, P., Dolfi, D., Dlubak, B., Seneor, P., Martin, M. -B., Hofmann, S., Robertson, J., Centano, A., Zurutuza, A. |
---|---|
Rok vydání: | 2015 |
Předmět: | |
Druh dokumentu: | Working Paper |
Popis: | 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. Comment: 15 pages, 4 figures |
Databáze: | arXiv |
Externí odkaz: |