Physics – Optics
Scientific paper
Jul 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985optl...10..321b&link_type=abstract
Optics Letters (ISSN 0146-9592), vol. 10, July 1985, p. 321-323.
Physics
Optics
2
Absorption Cross Sections, Atmospheric Windows, Iodine Lasers, Laser Spectroscopy, Photoacoustic Spectroscopy, Atmospheric Windows, Carbon Dioxide, Cyclopropane, Fourier Transformation, Methane
Scientific paper
The absorption cross sections at the chemical-iodine-laser frequency for methane and carbon dioxide in an atmosphere of dry air were determined with a photoacoustic cell to be (8 + or - 2) x 10 to the -24 and (5.4 + or - 0.4) x 10 to the -25th sq cm, respectively. A multipass absorption cell and a Fourier-transform spectrometer were used to obtain a cyclopropane absorption cross section (3.47 + or - 0.02) x 10 to the -24th sq cm at 14 076/cm for the photoacoustic-cell calibration.
Bragg Lawrence Sir
Lawton S. A.
Wiswall C. E.
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