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Proceedings Article

New light sources for time-correlated single-photon counting in commercially available spectrometers

[+] Author Affiliations
Roger Fenske, Dirk U. Näther, Mark Goossens, S. D. Smith

Edinburgh Instruments Ltd. (United Kingdom)

Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720H (October 25, 2006); doi:10.1117/12.688421
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From Conference Volume 6372

  • Advanced Photon Counting Techniques
  • Wolfgang Becker
  • Boston, MA | October 01, 2006

abstract

The method of Time Correlated Single Photon Counting requires high repetitive light sources (>100kHz) with pulse widths of ideally less than approximately 20ps. While these light sources have been available for some time now in the form of Ti:Sapphire lasers, picosecond pulsed diode lasers (<90ps) and light emitting diodes (<700ps), they all have the drawback of either having no spectral tunability, or tunability over a very narrow spectral range (10nm-100nm). While this is often sufficient for specific laboratory setups for measurements of fluorescence lifetimes, commercial Fluorescence Lifetime Spectrometers have suffered for a long time from the lack of the availability of simple, compact and relatively inexpensive broad spectral band light sources that can be employed for Time Correlated Single Photon Counting. A new light source as an integral part of a commercial fluorescence lifetime spectrometer will be discussed that allows tunability over a wide spectral band of more than 500nm.

© (2006) COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
Citation

Roger Fenske ; Dirk U. Näther ; Mark Goossens and S. D. Smith
"New light sources for time-correlated single-photon counting in commercially available spectrometers", Proc. SPIE 6372, Advanced Photon Counting Techniques, 63720H (October 25, 2006); doi:10.1117/12.688421; http://dx.doi.org/10.1117/12.688421


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