SOME APPROACHES TO VACUUM UV AND X-RAY LASERS
- 15 June 1967
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 10 (12), 350-352
- https://doi.org/10.1063/1.1728208
Abstract
The ejection of electrons from inner shells of atoms through photoionization is suggested as a straightforward means of creating population inversions at vacuum uv and x‐ray wavelengths. This can be accomplished by photon sources covering broad bands. Sodium vapor and solid copper are examined as possible candidates for laser action at 372 Å and 1.54 Å, respectively. A first‐rise traveling wave pump must be used; pumping powers required for superradiant operation run into several gigawatts, with rise times ranging from 10−9 sec in the near‐vacuum uv to 10−15 sec in the x‐ray region.Keywords
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