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Spectroscopy of matrices and thin films with an integrating sphere

Journal Article


Abstract


  • A description is presented of a novel experimental approach to improving sensivity to weak absorption in matrix isolation and thin film spectroscopy. The matrix or film is grown on the surface of an integrating sphere, in which the multiply reflected light correspondingly multipasses the sample film. The quantitative photometric behavior of the sphere is satisfactorily described by extending standard theory. Enhancement of absorption by a factor of at least 20 is possible and is demonstrated. The sphere has a number of useful advantages over other multipass techniques, particularly in matrix isolation spectroscopy.

Publication Date


  • 1989

Citation


  • Berger, E., Griffith, D. W. T., Schuster, G., & Wilson, S. R. (1989). Spectroscopy of matrices and thin films with an integrating sphere. Applied Spectroscopy, 43(2), 320-324. doi:10.1366/0003702894203327

Scopus Eid


  • 2-s2.0-0024606797

Start Page


  • 320

End Page


  • 324

Volume


  • 43

Issue


  • 2

Abstract


  • A description is presented of a novel experimental approach to improving sensivity to weak absorption in matrix isolation and thin film spectroscopy. The matrix or film is grown on the surface of an integrating sphere, in which the multiply reflected light correspondingly multipasses the sample film. The quantitative photometric behavior of the sphere is satisfactorily described by extending standard theory. Enhancement of absorption by a factor of at least 20 is possible and is demonstrated. The sphere has a number of useful advantages over other multipass techniques, particularly in matrix isolation spectroscopy.

Publication Date


  • 1989

Citation


  • Berger, E., Griffith, D. W. T., Schuster, G., & Wilson, S. R. (1989). Spectroscopy of matrices and thin films with an integrating sphere. Applied Spectroscopy, 43(2), 320-324. doi:10.1366/0003702894203327

Scopus Eid


  • 2-s2.0-0024606797

Start Page


  • 320

End Page


  • 324

Volume


  • 43

Issue


  • 2