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Journal of the Optical Society of America

Journal of the Optical Society of America

  • Vol. 70, Iss. 5 — May. 1, 1980
  • pp: 557–560

Absolute optical absorption coefficient measurements using photoacoustic spectroscopy amplitude and phase information

Y. C. Teng and B. S. H. Royce  »View Author Affiliations

JOSA, Vol. 70, Issue 5, pp. 557-560 (1980)

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In order to perform quantitative photoacoustic spectroscopy (PAS) it is desirable to have a method of obtaining the absolute absorption coefficient of a sample from PAS measurements alone. The photoacoustic signal contains both amplitude and phase data and this paper discusses a method by which this information may be used to determine the absolute absorption coefficient of condensed samples. Experimental results on ions in aqueous solution are also presented.

© 1980 Optical Society of America

Y. C. Teng and B. S. H. Royce, "Absolute optical absorption coefficient measurements using photoacoustic spectroscopy amplitude and phase information," J. Opt. Soc. Am. 70, 557-560 (1980)

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  1. A. Mandelis and B. S. H. Royce, "Relaxation Time Measurements in Frequency and Time Domain PAS of Condensed Phases," Paper W. A. 6 of the Topical Meeting on Photoacoustic Spectroscopy Ames, Iowa, 1979 (unpublished).
  2. A. Rosencwaig and A. Gersho. "Theory of the photoacoustic effect with solids," J. Appl. Phys. 47, 64–69 (1976).
  3. L. C. Aamodt, J. C. Murphy and J. G. Parker. "Size considerations in the design of cells for PAS," J. Appl. Phys. 48, 927–933 (1977).
  4. J. C. Roark, R. A. Palmer, and J. S. Hutchinson. "Quantitative Absorption Spectra via Photoacoustic Phase Angle Spectroscopy (ΦAS)," Chem. Phys. Lett. 60 112–116 (1978).
  5. A. Mandelis, Y. C. Teng, and B. S. H. Royce. "Phase measurements in frequency domain PAS of solids," J. Appl. Phys. 50, 7138–7146 (1979).
  6. A. Silversmith, T. D. Wakefield, and R. Blank. "Phase Measurements and Verification of Theory in Photoacoustic Spectroscopy," Paper 184 Pittsburgh Conference on Analytical Chemistry and Applied Spectroscopy (1979) (unpublished); (private communication).
  7. G. C. Wetsel and F. A. McDonald. "PAS determination of absolute optical absorption coefficients," Appl. Phys. Lett. 30, 252–254 (1977).
  8. F. A. McDonald and G. C. Wetsel, "General theory of the photoacoustic effect." J. Appl. Phys. 49, 2313 (1978).
  9. See, for example, T. R. McCalla, Introduction to Numerical Methods and FORTRAN Programming (Wiley, New York, 1967), pp. 255–260.

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