Apparatus and method for time resolved spectroscopy

Details Apparatus and method for time resolved spectroscopy Apparatus and method for time resolved spectroscopy

1996-08-26

1998-04-07

Hantis, K.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

2504581, 2504591, G01J 3457

Patent

active

057370770

ABSTRACT:
A time resolved spectroscopy system and method are provided using digital processing techniques of a low power, continuous wave signal generated by a continuous wave light source, such as a cw laser. Time elapse is determined by measuring the time shift of the signal modulation sequence using the cross correlation of a return signal with the reference signal. The high resolution time delay is introduced at the start of each modulation cycle and the high resolution measurement is constructed by interlacing a data set based on the delay information. The high resolution TRS or fluorescence measurement is achieved by correlation calculation of the measured data and the reference code and deconvolving the autocorrelation function of the reference code.

REFERENCES:
patent: 5269900 (1993-12-01), Jorgenson et al.

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