Time-Resolved Infrared Spectral Photography,
Abstract
A new technique was recently developed which allows broadband infrared absorption spectra to be photographed with approximately equal to 5 nsec time resolution, even under some conditions, in a single-shot. Experimental details and theoretical aspects of this method are discussed at length in. Briefly, the technique utilizes third order nonlinearities of alkali metal vapors to achieve two objectives: (1) generation of a pulsed, broadband, infrared continuum beam (NU sub ir) which can probe the absorption of a sample and (2) subsequent conversion of this i.r. beam, with its encoded spectral information about the sample, to the visible, where it can be photographically or photoelectrically recorded.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 18, 1979
- Accession Number
- ADA079653
Entities
People
- D. S. Bethune
- J. R. Lankard
- M. M. T. Loy
- P. P. Sorokin
Organizations
- IBM Thomas J. Watson Research Center