Conic hyperspectral dispersion mapping applied to semiconductor plasmonics

Dominic Lepage; Alvaro Jiménez; Jacques Beauvais; Jan J Dubowski

doi:10.1038/lsa.2012.28

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Conic hyperspectral dispersion mapping applied to semiconductor plasmonics

Original Article

- Conic hyperspectral dispersion mapping applied to semiconductor plasmonics
- Conic hyperspectral dispersion mapping applied to semiconductor plasmonics
- LSA 2012年1卷第1期
- Affiliations：
  
  Department of Electrical and Computer Engineering, Interdisciplinary Institute for Technological Innovation (3IT), Université de Sherbrooke, Sherbrooke, Qué., Canada
- Author bio：
  
  Correspondence: Professor JJ Dubowski, Laboratory for Quantum Semiconductors and Photon-based BioNanotechnology, Université de Sherbrooke, 2500 boul. de l'Université, Sherbrooke, Qué. J1K 2R1, Canada URL: http://www.dubowski.ca
- Funds：
- DOI：10.1038/lsa.2012.28
  中图分类号：
- 纸质出版日期：2012-03，
  
  网络出版日期：2012-09-14，
  
  收稿日期：2012-04-16，
  
  修回日期：2012-06-04，
  
  录用日期：2012-06-26
- Accepted：
Scan QR Code
Conic hyperspectral dispersion mapping applied to semiconductor plasmonics[J]. LSA, 2012,1(1).

Lepage, D. et al. Conic hyperspectral dispersion mapping applied to semiconductor plasmonics. Light: Science & Applications, 1, e28 (2012).
Conic hyperspectral dispersion mapping applied to semiconductor plasmonics[J]. LSA, 2012,1(1). DOI： 10.1038/lsa.2012.28.

Lepage, D. et al. Conic hyperspectral dispersion mapping applied to semiconductor plasmonics. Light: Science & Applications, 1, e28 (2012). DOI： 10.1038/lsa.2012.28.

摘要

Abstract

The surface plasmon resonance tracking over metal surfaces is a well-established

commercially available

biochemical quantification tool primarily applied in research. The utilization of such a tool is

however

constrained to highly specialized industries

capable of justifying the human and instrumental resource investments required by the characterization method. We have proposed to expand the field of application of this biosensing approach by redesigning this method through the integration and miniaturization within a semiconductor platform. Uncollimated and broadband emission from a light-emitting semiconductor is employed to couple a continuum of surface plasmon modes over a metal–dielectric architecture interfaced with a GaAs–AlGaAs substrate. A tensor version of rigorous coupled wave theory is employed to optimize the various fabrication specifications and to predict the light scatterings over a wide range of variables. We then present a hyperspectral characterization microscope capable of directly mapping the dispersion relation of scattered light

including diffracted surface plasmons

as an intensity distribution versus photon energy and surface wavevectors. Measurements carried out in a buffered solution demonstrate the accurate description of the uncollimated and broadband surface plasmon states. Finally

we introduce a simplified method of dispersion mapping

in which quasi-conic cross-sections of the light's scattering can be acquired directly

thus monitoring surficial responses in as fast as 1.2 s. This is over 300 times faster than required by implementing full dispersion mapping. While compromising on the volume of collected information

this method

combined with the solid-state integration of the platform

shows great promise for the fast detection of biochemical agents.

关键词

Keywords

biosensorslight scatteringoptical devicessemiconductorssurface plasmon resonance

references

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