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Proceedings Paper

Using resistive readout to probe ultrafast dynamics of a plasmonic sensor
Author(s): Alec Cheney; Borui Chen; Alexander Cartwright; Tim Thomay
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Paper Abstract

Surface plasmons in a DC current lead to an increase in scattering processes, resulting in a measurable increase in electrical resistance of a plasmonic nano-grating. This enables a purely electronic readout of plasmonically mediated optical absorption. We show that there is a time-dependence in these resistance changes on the order of 100ps that we attribute to electron-phonon and phonon-phonon scattering processes in the metal of the nano-gratings. Since plasmonic responses are strongly structurally dependent, an appropriately designed plasmoelectronic detector could potentially offer an extremely fast response at communication wavelengths in a fully CMOS compatible system.

Paper Details

Date Published: 22 February 2018
PDF: 8 pages
Proc. SPIE 10530, Ultrafast Phenomena and Nanophotonics XXII, 105300E (22 February 2018);
Show Author Affiliations
Alec Cheney, Univ. at Buffalo (United States)
Borui Chen, Univ. at Buffalo (United States)
Alexander Cartwright, Univ. at Buffalo (United States)
Tim Thomay, Univ. at Buffalo (United States)

Published in SPIE Proceedings Vol. 10530:
Ultrafast Phenomena and Nanophotonics XXII
Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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