Authors: Moreno, F.; López, R.J.

Source: Applied Spectroscopy, Volume 41, Issue 8, Pages 1265-1457 (November/December 1987) , pp. 1307-1311(5)

Publisher: Society for Applied Spectroscopy

Abstract:

In this paper we present a method for processing the time-interval data obtained in a single-photon-decay spectroscopy experiment. This method is based on the measurement of the Laplace transform of P_f(t) [the probability distribution function of the time of arrival of the first photon (PDFP) after the excitation pulse] instead of the direct measurement of P_f(t) by means of a multichannel analyzer. With the use of this method, a good estimation of the lifetime of the signal can be obtained with a shorter measurement time than that used in the conventional method, in which the recorded time intervals are used to construct P_f(t). A theoretical model of the error involved in determining the lifetime is obtained for the Laplace method, and it is compared with that corresponding to the measurement of P_f(t) by means of a multichannel analyzer. Finally, a computer simulation of the experiment is performed to corroborate the theoretical predictions.

Keywords: Fluorescence; Luminescence; Spectroscopic techniques; Time-resolved spectroscopy

Document Type: Research article

DOI: http://dx.doi.org/10.1366/0003702874447103

Affiliations: 1: Departamento de Optica y Estructura de la Materia, Facultad de Ciencias, Universidad de Cantabria, 39005 Santander, Spain

Publication date: 1987-11-01

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