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

  • Alec Cheney
  • , Borui Chen
  • , Tianmu Zhang
  • , Tim Thomay
  • , Alexander Cartwright
  • SUNY Buffalo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

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.

Original languageEnglish
Title of host publicationNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV
EditorsDan V. Nicolau, Dror Fixler, Alexander N. Cartwright
PublisherSPIE
ISBN (Electronic)9781510605954
DOIs
StatePublished - 2017
EventNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV 2017 - San Francisco, United States
Duration: Jan 30 2017Feb 1 2017

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume10077
ISSN (Print)1605-7422

Conference

ConferenceNanoscale Imaging, Sensing, and Actuation for Biomedical Applications XIV 2017
Country/TerritoryUnited States
CitySan Francisco
Period01/30/1702/1/17

Keywords

  • CMOS-compatible detector
  • Electronic readout
  • Plasmonic biosensor
  • Plasmonic Losses
  • Ultrafast plasmonics

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