Selective trace detection of asymmetric rotor molecules by stark-modulated phase fluctuation optical heterodyne spectroscopy |
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Authors: | Samuel J. Petuchowski Christopher C. Davis |
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Affiliation: | Electrical Engineering Department, University of Maryland, College Park, Maryland 20742, USA |
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Abstract: | Stark modulation of vibration-rotational absorption resonances in five asymmetric rotor molecules with hindered internal rotation allows selective detection of trace organic gas concentrations in air by means of phase fluctuation optical heterodyne spectroscopy. A parallel-beam interferometric configuration is described. |
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