Application of white light-emitting diode to surface plasmon resonance sensors

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • H. P. Ho
  • S. Y. Wu
  • M. Yang
  • A. C. Cheung

Detail(s)

Original languageEnglish
Pages (from-to)89-94
Journal / PublicationSensors and Actuators, B: Chemical
Volume80
Issue number2
Publication statusPublished - 20 Nov 2001

Abstract

In this paper, we show that white light-emitting diode (white LED) is a viable light source for replacing the commonly-used halogen lamp in spectral surface plasmon resonance (SPR) sensors. We have constructed an experimental setup and results obtained from glycerin-water mixtures clearly demonstrate the systems capability in resolving the shift in the SPR dip caused by a change in the glycerin concentration. The use of white LED has the obvious benefits of direct modulation, low cost, long operation lifetime, robustness and small size. These are important pre-requisites for future commercialization of the SPR sensing technology. © 2001 Elsevier Science B.V. All rights reserved.

Research Area(s)

  • Optical sensor, Refractive index, Surface plasmon resonance, White LED applications

Citation Format(s)

Application of white light-emitting diode to surface plasmon resonance sensors. / Ho, H. P.; Wu, S. Y.; Yang, M. et al.
In: Sensors and Actuators, B: Chemical, Vol. 80, No. 2, 20.11.2001, p. 89-94.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review