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Fluorescence Decay Measurements via High Repetition Rate Gated Photon Counting

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Abstract:

Current methods for time-resolved measurements with photon counting detection are not able to take advantage adequately of the high repetition rates available from most pulsed ion laser sources. A technique is described which allows high repetition rate gating of fluorescence decays with photon counting detection. Fluorescence decay measurements of acridine orange (τ = 4.4 ns), rubrene (τ = 16.5 ns) and tris(bipyridine)ruthenium(II) dichloride (τ = 760 ns) are obtained at repetition rates as high as 2.7 MHz. The utility of this technique for analog measurements is also demonstrated.

Keywords: Fluorescence lifetimes; Laser; Photon counting; Time-resolved spectroscopy

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702804730745

Affiliations: Department of Chemistry, Purdue University, West Lafayette, Indiana 47907

Publication date: March 1, 1980

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