Lamb Dip Spectroscopy and Carbon Dioxide Frequency Stabilization on Sulphur Hexafluoride,
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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1970
- Accession Number
- AD0715314
Entities
People
- Paul Rabinowitz
Organizations
- New York University Tandon School of Engineering