Accession Number : AD0715314

Title :   Lamb Dip Spectroscopy and Carbon Dioxide Frequency Stabilization on Sulphur Hexafluoride,

Corporate Author : POLYTECHNIC INST OF BROOKLYN FARMINGDALE N Y DEPT OF ELECTROPHYSICS

Personal Author(s) : Rabinowitz,Paul

Report Date : JUN 1970

Pagination or Media Count : 85

Abstract : The Lamb dip, a phenomenon associated with the nonlinear absorption of a standing wave in an inhomogeneously broadened medium, has been usedas the basis of a new type of high resolution spectroscopy and as a sharp reference for stabilizing the frequency of a laser. The effect has been applied in a high resolution study of the absorption properties of the SF6 molecule at a wavelength of 10.6 microns. The dip has also been used to stabilize the frequency of a CO2 laser to the same line centers that were studied. In addition, a theoretical analysis has been made of the dependence of the Lamb dip on absorption length and intensity which agrees favorably with experimental results. An examination of the limitations of this technique for spectroscopy and frequency stabilization is presented. Suggestions for improvements in the experimental techniques and for refinements of the existing apparatus are included. (Author)

Descriptors :   (*SULFUR COMPOUNDS, *INFRARED SPECTRA), FLUORIDES, GAS LASERS, CARBON DIOXIDE, INFRARED SPECTROSCOPY, INFRARED SPECTROPHOTOMETERS, ELECTRON TRANSITIONS, MOLECULAR ENERGY LEVELS

Subject Categories : Atomic and Molecular Physics and Spectroscopy

Distribution Statement : APPROVED FOR PUBLIC RELEASE