Fourier spectroscopy of water vapor in the volume of aerogel nanopores. Part 1. Measurements and calculations

A. M. Solodov, T. M. Petrova, Yu N. Ponomarev, A. A. Solodov, V. I. Starikov

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    Broadening and shifting of absorption lines of water vapor confined inside aerogel nanopores have been studied with the help of a IFS 125 HR Fourier spectrometer in the region 5000–5600 cm−1. It is shown that strong spatial limitation of molecular movement results in significant broadening and shifting of spectral lines. A semiempirical model for description of the form of absorption line contours for H2O molecules confined inside aerogel nanopores, taking account of the dependence of spectral line half-width on rotational quantum numbers, is presented for the first time. Values of spectral line half-widths found experimentally and theoretically are in good agreement.

    Original languageEnglish
    Pages (from-to)372-380
    Number of pages9
    JournalAtmospheric and Oceanic Optics
    Issue number5
    Publication statusPublished - 1 Sep 2014



    • aerosol
    • nanopores
    • spectral line broadening
    • water vapor

    ASJC Scopus subject areas

    • Oceanography
    • Atomic and Molecular Physics, and Optics
    • Earth-Surface Processes
    • Atmospheric Science

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