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dc.creatorSandholm, S. T.en_US
dc.creatorShabestary, N.en_US
dc.creatorSchwendeman, R. H.en_US
dc.date.accessioned2006-06-15T14:50:22Z
dc.date.available2006-06-15T14:50:22Z
dc.date.issued1983en_US
dc.identifier1983-TE-03en_US
dc.identifier.urihttp://hdl.handle.net/1811/11974
dc.descriptionAuthor Institution: Department of Chemistry, Michigan State University East Lansingen_US
dc.description.abstractA computer-coupled infrared-microwave two-photon spectrometer has been used to record the lineshapes of transitions in $^{15}NH_{3}$ as a function of sample pressure and microwave power. The frequency of the $CO_{2}$ laser is stabilized by monitoring the saturation dip in the fluorescence from a $CO_{2}$ sample in the laser cavity. A laboratory computer steps the microwave frequency and records the spectrum. The computer also records the frequency variation of the microwave power, which can be used to normalize the data to constant power. The lineshapes, as analyzed by means of the expression for a Voigt profile, appear to show significant changes in the center frequency and the Lorentz width as the microwave power is varied. The nature of these variations will be described and compared to predictions from the theory of two-photon absorption in a three-level system. $^{*}$This work was supported by the National Science Foundationen_US
dc.format.extent74090 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleTHE LINESHAPE OF INFRARED-MICROWAVE TWO-PHOTON TRANSITIONS: THE $\nu_{2}$ BAND OF $^{15}NH_{3}\ast$en_US
dc.typearticleen_US


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