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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editors: Andrew Dunn and Anthony Durkin
  • Vol. 7, Iss. 1 — Jan. 4, 2012

Laser Phosphoroscope and Applications to Room-Temperature Phosphorescence

Sarah J. Payne, Guoqing Zhang, James N. Demas, Cassandra L. Fraser, and Ben A. Degraff

Applied Spectroscopy, Vol. 65, Issue 11, pp. 1321-1324 (2011)


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Abstract

A simple phosphoroscope with no moving parts is described. In one scan the total luminescence, the long-lived phosphorescence, and the short-lived fluorescence can be determined. A 50% duty cycle excitation from a diode laser is used to excite the sample, and from the digitized waveform the phosphorescence is extracted from the off period, the total emission from the full cycle, and the fluorescence from the on period corrected for the phosphorescence contribution. The performance of the system is demonstrated using room-temperature phosphorescence of organic dyes in boric acid glasses, a multi-emissive boron-polymer dye, and a europium chelate.

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Vol. 7, Iss. 1 Virtual Journal for Biomedical Optics

Citation
Sarah J. Payne, Guoqing Zhang, James N. Demas, Cassandra L. Fraser, and Ben A. Degraff, "Laser Phosphoroscope and Applications to Room-Temperature Phosphorescence," Appl. Spectrosc. 65, 1321-1324 (2011)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=as-65-11-1321


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