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Joshua B Fishkin, 63718 Waterford Dr, Chico, CA 95973

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718 Waterford Dr, Chico, CA 95973   

555 Vallombrosa Ave #23, Chico, CA 95926    530-3422317   

555 Vallombrosa Ave, Chico, CA 95926   

Renton, WA   

Long Beach, CA   

Huntington Beach, CA   

Costa Mesa, CA   

Champaign, IL   

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Us Patents

Characterizing Fluorescent And/Or Phosphorescent Materials

US Patent:
2007001, Jan 18, 2007
Filed:
Jul 14, 2005
Appl. No.:
11/182050
Inventors:
Joshua Fishkin - Long Beach CA, US
Isaac Richman - Newport Coast CA, US
International Classification:
G01N 21/64
US Classification:
250458100, 250459100
Abstract:
A method spectrally and temporally characterizing the fluorescence and/or phosphorescence of a material includes using a frequency-domain cross-correlation fluorometer-phosphorimeter employing an interferometer. A flux-modulated excitation signal is used to excite the material. An interferometer is used to generate an optical path difference (OPD) between portions of an emission signal produced by the excited material to obtain an optical interference signal. The optical interference signal is detected by a heterodyning detection system to determine phase shift and demodulation of the emission signal relative to the excitation signal. Phase shift and demodulation data are acquired at a series of OPD values generated by the interferometer and at a plurality of light source flux-modulation frequencies at each OPD to spectrally and temporally resolve the emission signal.

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