Stimulated Soft X-Ray Emission in the Range of 40A to 140A from Laser Excited Media
Abstract
A program to obtain experimental evidence for soft x-ray laser action is described. Analysis of the pumping requirements for an x-ray laser point to the use of a high density medium, probably having a high temperature, as a soft x-ray amplifier. We concentrated our study on determining the suitability of a laser produced plasma for this purpose. Measurements of the relevant plasma parameters (electron temperature and density, plasma scale length, etc.) were carried out. A comparison of the results with various published proposals for producing soft x-ray laser action in a plasma was made. A scheme involving the use of 3p to 3s transitions in carbon-like ions was selected for a more detailed study. A computer simulation of a laser plasma was performed, using the HOT SPOT model. The results show that readily measurable gain could be achieved in the wavelength range of 600-800A under the conditions present in our experiment. Relatively straight-forward scaling of the results to shorter wavelengths would be possible. An experiment was designed and partially assembled to test the results of the computer simulation. The ARPA program was terminated before the experiment could be carried out.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1976
- Accession Number
- ADA062396
Entities
People
- James M. Forsyth
- Moshe J. Lubin
Organizations
- University of Rochester