Experimental Application of the Fourier Transform of the Time-Interval Probability Technique to Lifetime Measurement

1992 ◽  
Vol 46 (7) ◽  
pp. 1140-1142 ◽  
Author(s):  
S. Jarabo ◽  
M. A. Rebolledo ◽  
J.F. Calleja
Keyword(s):  
Fourier Transform ◽  
Fluorescence Decay ◽  
Lifetime Measurement ◽  
Time Interval ◽  
Interval Probability ◽  
Decay Spectroscopy ◽  
Spectroscopy Experiment ◽  
The Fourier Transform ◽  
Er Doped ◽  
Doped Glass

In this paper the Fourier transform of the time-interval probability (FT-TIP) technique is applied to a fluorescence decay spectroscopy experiment in which a very small signal is detected. The lifetime of the 4 F9/2, level of Er3+ ions in an Er-doped glass is measured by the FT-TIP technique. It is concluded that this technique can be applied to lifetime measurement with small errors, in those experiments where standard techniques do not work well because of the small detected signal.

A Deconvolution Technique for Determining the Intrinsic Fluorescence Decay Lifetimes of Crude Oils

1988 ◽  
Vol 42 (3) ◽  
pp. 406-410 ◽  
Author(s):  
M. F. Quinn ◽  
S. Joubian ◽  
F. Al-Bahrani ◽  
S. Al-Aruri ◽  
Oussama Alameddine
Keyword(s):  
Fourier Transform ◽  
Impulse Response ◽  
Exponential Decay ◽  
Fluorescence Decay ◽  
Average Lifetime ◽  
Nitrogen Laser ◽  
Alternative Approach ◽  
Deconvolution Technique ◽  
The Fourier Transform ◽  
Single Exponential

A simple deconvolution procedure using FT was developed for determining the average lifetime of samples excited by a nitrogen laser pumped dye laser operating at 428 nm. To overcome the noise limitations imposed by including higher frequency harmonics in the analysis, we used an alternative approach. This approach relied on taking the Fourier transform at 21 subharmonic frequencies and using an appropriate weighting procedure in the calculation of amplitude and lifetime of the sample impulse response. A single exponential decay was assumed.

Study of Different Photon Statistics Techniques, Based on Time-Interval Measurement, Applied to Fluorescence Decay Spectroscopy

1993 ◽  
Vol 47 (8) ◽  
pp. 1251-1255 ◽  
Author(s):  
F.-J. Calleja ◽  
S. Jarabo ◽  
M. A. Rebolledo
Keyword(s):  
Computer Simulation ◽  
Fluorescence Decay ◽  
Photon Statistics ◽  
Time Interval ◽  
Simulation Methods ◽  
Interval Measurement ◽  
Decay Spectroscopy ◽  
Time Interval Measurement

In this paper we present a study of different existing techniques which are used in fluorescence decay spectroscopy and are based on time-interval measurement. An improvement in some of these techniques is obtained by deducing more general expressions applicable to them. By using computer simulation methods the accuracies of these techniques are studied and compared.

Lifetime Measurement by Using the Laplace Transform in Single-Photon-Decay Spectroscopy

1987 ◽  
Vol 41 (8) ◽  
pp. 1307-1311 ◽  
Author(s):  
F. Moreno ◽  
R. J. LÓPez
Keyword(s):  
Laplace Transform ◽  
Single Photon ◽  
Interval Data ◽  
Time Interval ◽  
Time Of Arrival ◽  
Photon Decay ◽  
Multichannel Analyzer ◽  
Decay Spectroscopy ◽  
Spectroscopy Experiment ◽  
The Laplace Transform

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 Pƒ( 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 Pƒ( 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 Pƒ( 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 Pƒ( t) by means of a multichannel analyzer. Finally, a computer simulation of the experiment is performed to corroborate the theoretical predictions.

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