Surface plasmon polariton amplification upon electrical injection in highly integrated plasmonic circuits |
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Authors: | Fedyanin Dmitry Yu Krasavin Alexey V Arsenin Aleksey V Zayats Anatoly V |
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Affiliation: | Laboratory of Nanooptics and Femtosecond Electronics, Department of General Physics, Moscow Institute of Physics and Technology (State University), 9 Institutsky Lane, Dolgoprudny 141700, Russian Federation. feddu@mail.ru |
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Abstract: | We propose a very efficient approach for amplification of surface plasmon polaritons (SPPs) in a nanoscale waveguiding geometry with strong (~λ/10) mode confinement. The implemented scheme of electric pumping is based on a single-heterostructure Schottky-barrier diode and has been numerically shown to ensure full compensation of the SPP propagation losses at wavelengths around 3 μm and, moreover, to provide net SPP gain. The presented concept creates the backbone for the implementation of highly integrated large-scale hybrid electronic-plasmonic circuits operating at extremely high speeds and opens the prospects for the realization of integrated coherent SPP sources. |
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