OSA's Digital Library

Applied Spectroscopy

Applied Spectroscopy


  • Vol. 42, Iss. 1 — Jan. 1, 1988
  • pp: 134–138

Advantages of Phase Analysis in Fourier Transform Infrared Photoacoustic Spectroscopy

Lionel Bertrand

Applied Spectroscopy, Vol. 42, Issue 1, pp. 134-138 (1988)

View Full Text Article

Acrobat PDF (530 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

  • Export Citation/Save Click for help


Fourier transform infrared photoacoustic spectroscopy is greatly improved by the simultaneous measurement of the photoacoustic signal amplitude and phase. Saturation effects, sample dilation, and optical scattering, even in heterogeneous samples, can be easily corrected to give the absorption coefficient real value. Quantitative analyses without any special sample preparation or special photoacoustic cell are now possible. Moreover, the phase of the photoacoustic signal permits depth localization of the absorbing species within the thermal diffusion length. Surface analyses are thus possible that have a depth resolution at least one order of magnitude higher than that obtained by changing the thermal diffusion length. In this paper we illustrate the advantages of phase analysis in Fourier transform infrared photoacoustic spectroscopy with the detection of sorbed water in polyethylene.

Lionel Bertrand, "Advantages of Phase Analysis in Fourier Transform Infrared Photoacoustic Spectroscopy," Appl. Spectrosc. 42, 134-138 (1988)

Sort:  Journal  |  Reset


References are not available for this paper.

Cited By

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited