CALORIMETRIC MEASUREMENT OF FLUORESCENCE YIELD

Abstract

A method for measuring fluorescence yield of solutions is described, through which the heating resulting from absorbed light in fluorescing and nonfluorescing solutions is compared. Determination of the yield is based on the fact that for the same absorption in a nonfluorescing solution all the absorbed light energy is converted into beat, and the heating of the fluorescing solutions takes place by means of that portion of the energy of the absorbed light which is not emitted in the form of fluorescence. Results of fluorescence yield measurements are presented for several solutions of dyes. The precision of measurements for substances with yields close to unity is of the order of 5 percent.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1963
Accession Number
AD0400973

Entities

People

  • M. N. Alentsev

Organizations

  • United States Army Biological Warfare Laboratories

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Absorption
  • Biological Laboratories
  • Brightness
  • Dyes
  • Energy
  • Fluorescence
  • Lamps
  • Laser Dyes
  • Light Sources
  • Luminescence
  • Measurement
  • Mercury Lamps
  • Precision
  • Quantum Yields
  • Radiation
  • Refraction
  • Refractive Index

Readers

  • Chemistry (specifically Chemical Fluorescence)
  • Thermal Physics or Thermal Science.