Optical rectification by ratchet transport in an asymmetric grating

We report on electron ratchet transport’s manifestation in the optical rectification (OR) of an asymmetric grating. The photon-drag enabled effect is magnified by asymmetric photon scatterings and the induced optical nonlinearity associated with the surface plasmon polariton (SPP) via its near-field...

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Autores principales: P. Moroshkin, T. Ochiai, R. Osgood III, J. Xu
Formato: article
Lenguaje:EN
Publicado: AIP Publishing LLC 2021
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Acceso en línea:https://doaj.org/article/ebfc5b8edfdf44adbca46b5752a00d96
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Sumario:We report on electron ratchet transport’s manifestation in the optical rectification (OR) of an asymmetric grating. The photon-drag enabled effect is magnified by asymmetric photon scatterings and the induced optical nonlinearity associated with the surface plasmon polariton (SPP) via its near-field and gradient intensifications. The measured OR efficiency is increased multi-fold, over the prior art, which is attributable to its operating in a higher-order diffraction and nonlinearity regime and to a minimized coupling loss to a potential SPP mode at the lower interface.