Accession Number : ADD012190
Title : Method and Apparatus for Detecting Singlet State Resonance Fluorescence.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC
Personal Author(s) : Barrett,Terence W
Report Date : 26 Nov 1985
Pagination or Media Count : 10
Abstract : This patent discloses a method and apparatus for detecting the wavelength of singlet state resonance fluorescence of a sample, wherein the sample is illuminated sequentially with various incident wavelengths. For each wavelength, linearly polarized and circularly polarized components are allowed to pass sequentially by a first polarizer to the sample. The sample emits light as a result of spontaneous molecular energy transitions. Four components of the emitted light are allowed to sequentially pass to a detector by a second polarizer. The intensities of these components are then detected, and these values can be employed to obtain a new ratio for each wavelength at which this ratio equals one is selected as the wavelength of resonance fluorescence. In one example, a computer is provided to control the illumination of the sample and the two polarizers, and also may be utilized to computer the above ratios.
Descriptors : *PATENTS, *OPTICAL DETECTORS, *FLUORESCENCE, EMISSION SPECTRA, RESONANCE, ILLUMINATION, POLARIZERS, COMPUTER APPLICATIONS, LINEAR POLARIZATION
Subject Categories : Optical Detection and Detectors
Distribution Statement : APPROVED FOR PUBLIC RELEASE