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

Roger Fenske; Dirk U. Näther; Mark Goossens; S. Desmond Smith

doi:10.1117/12.688421

25 October 2006 New light sources for time-correlated single-photon counting in commercially available spectrometers

Roger Fenske, Dirk U. Näther, Mark Goossens, S. Desmond Smith

Proceedings Volume 6372, Advanced Photon Counting Techniques; 63720H (2006) https://doi.org/10.1117/12.688421
Event: Optics East 2006, 2006, Boston, Massachusetts, United States

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.

Citation Download Citation

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

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