Title :
Experimental Procedures for Fluorescent Lifetime Measurements with Customized Embedded DSP Systems and Adaptive Algorithms
Author :
Arul, Ann D. ; Snyder, Andy ; Kelley, Redmond ; Meier, John ; Hicks, Tyler ; Yeary, Mark ; McCann, Patrick ; Roller, Chad
Author_Institution :
Univ. of Oklahoma, Norman
Abstract :
This paper describes a method of utilizing UV lasers, detectors, and a high-speed digital signal processor (DSP)-based digitizer to measure the fluorescence lifetime of fluorophores. The aim of the design is to create a low cost compact device which guarantees ease of use while not compromising performance. An ultrafast photomultiplier tube coupled with an excitation light filter is used to characterize accurately the fluorescence emission from the sample. The results obtained from several material specimens are presented.
Keywords :
analogue-digital conversion; fluorescence spectroscopy; optical couplers; optical filters; organic compounds; photodetectors; photomultipliers; radiative lifetimes; spectrochemical analysis; UV lasers; adaptive algorithms; detectors; excitation light filter; fluorescence lifetime; fluorophores; high-speed digital signal processor-based digitizer; ultrafast photomultiplier tube; Adaptive algorithm; Costs; Digital signal processing; Digital signal processors; Filters; Fluorescence; Laser excitation; Lifetime estimation; Optical coupling; Photomultipliers; Fluorescence; biodetection; high-speed undersampling; laser applications; lifetime spectroscopy; swept delay;
Conference_Titel :
Region 5 Technical Conference, 2007 IEEE
Conference_Location :
Fayetteville, AR
Print_ISBN :
978-1-4244-1280-8
Electronic_ISBN :
978-1-4244-1280-8
DOI :
10.1109/TPSD.2007.4380365
