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Proceedings Paper

Plasmoelectronic sensor for real-time on-chip wavelength selective biosensing
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Paper Abstract

Using resistive losses induced by optically excited surface plasmons has shown promise as a CMOS-compatible plasmonic light detector. Increased electron scattering introduced by surface plasmons in an applied current results in a measurable decrease in electrical conductance of a grating, allowing a purely electronic readout of surface plasmon excitation. Accordingly, because of its plasmonic nature, such a detector is dependent on both the wavelength and polarization of incident light with a response time limited by the surface plasmon lifetime. Our ultrafast measurements with electronic read-out indicate that the response time of this detector is on the order of 1ps. Thus such a detector would enable time-resolved biomedical applications such as real-time monitoring of protein structural dynamics for pharmacological applications and research.

Paper Details

Date Published: 22 February 2017
PDF: 10 pages
Proc. SPIE 10077, Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV, 1007704 (22 February 2017); doi: 10.1117/12.2252176
Show Author Affiliations
Alec Cheney, Univ. at Buffalo (United States)
Borui Chen, Univ. at Buffalo (United States)
Tianmu Zhang, Univ. at Buffalo (United States)
Tim Thomay, Univ. at Buffalo (United States)
Alexander Cartwright, Univ. at Buffalo (United States)

Published in SPIE Proceedings Vol. 10077:
Nanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV
Alexander N. Cartwright; Dan V. Nicolau; Dror Fixler, Editor(s)

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