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dc.creatorPearson, J. C.en_US
dc.creatorPickett, H. M.en_US
dc.creatorChen, Pinen_US
dc.creatorMatsuura, Shujien_US
dc.creatorBlake, Geoffrey A.en_US
dc.date.accessioned2006-06-15T19:23:32Z
dc.date.available2006-06-15T19:23:32Z
dc.date.issued1999en_US
dc.identifier1999-WF-01en_US
dc.identifier.urihttp://hdl.handle.net/1811/19541
dc.description$^{a}$ Shuji Matsuura, Pin Chen, Geoffrey A. Blake, J.C. Pearson and Herbert M. Pickett, IEEE MTT, in press (1998).en_US
dc.descriptionAuthor Institution: Jet Propulsion Laboratory, California Institute of Technology; National Institute of Standards and Technology, Time and Frequency Division; Division of Geological and Planetary Sciences, California Institute of Technologyen_US
dc.description.abstractA three laser system based on 852nm DBR lasers has been constructed and used to generate radiation in the 750 GHz to 1600 GHz frequency region. The system works by locking two of the three lasers to modes of an ultra low expansion Fabry-Perot cavity. The third laser is offset locked to one of the cavity locked lasers with conventional microwave techniques. The signal from the offset laser and the other cavity locked laser are injected into a Master Oscillator Power Amplifier (MOPA), amplified and focused on a low temperature grown GaAs photomixer, which radiates the difference frequency. The system has been calibrated with molecular lines to better than one part in $10^{7a}$ In this paper we present the application of this system to the $v_{2}$ inversion band of Ammonia and the ground and $v_{2}$ states of water. A discussion of the system design, the calibration and the new spectral measurements will be presented.en_US
dc.format.extent137663 bytes
dc.format.mimetypeimage/jpeg
dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleCONSTRUCTION AND CALIBRATION OF A DIFFERENCE FREQUENCY LASER SPECTROMETER AND NEW THZ FREQUENCY MEASUREMENTS OF WATER AND AMMONIAen_US
dc.typearticleen_US


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