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Power absorption coefficient constants for water, acetonitrile, and methylene chloride at far infrared wavelengths

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Abstract

The problem of multiple internal reflections within the windows of an optical cell is analysed using Abele's matrix method. The Beer-Lambert power law is modified by the standing waves formed in between the cell and the detector. Power absorption coefficient of a material is calculated by a fit to the modified version of the equation. Precise α values for water, acetonitrile and methylene chloride are calculated at far infrared wavelengths using a molecular laser source.

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Authors and Affiliations

  1. Department of Microelectronics and Electrical Engineering, Trinity College Dublin, Dublin 2, Ireland

    J. K. Vij

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  1. J. K. Vij
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Vij, J.K. Power absorption coefficient constants for water, acetonitrile, and methylene chloride at far infrared wavelengths. Int J Infrared Milli Waves 10, 847–867 (1989). https://doi.org/10.1007/BF01011496

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  • DOI: https://doi.org/10.1007/BF01011496

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