Observations of gains in the extreme ultraviolet
- 14 October 1982
- journal article
- Published by IOP Publishing in Journal of Physics B: Atomic and Molecular Physics
- Vol. 15 (19), 3557-3580
- https://doi.org/10.1088/0022-3700/15/19/021
Abstract
Observations of gain on the hydrogen-like carbon ion Balmer- alpha transition, C VI Halpha , at 182 AA are examined for consistency and possible sources of error. It is concluded on purely experimental grounds that the only result consistent with the full set of data is that amplification is observed, and that this should be ascribed to gain by stimulated emission. The data are compared with the values obtained by computational modelling and shown to be in satisfactory agreement provided the incomplete burn through is taken into account in accord with the numerical predictions. It is found that the model severely underestimates the gain observed: reasons for this are given.Keywords
This publication has 18 references indexed in Scilit:
- Spectrograph calibration at extreme ultraviolet wavelengths by comparison to a 'standard' spectrographJournal of Physics E: Scientific Instruments, 1981
- Extreme ultraviolet laser action in plasmasPhilosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1981
- A technique for determining characteristic curves for photographic emulsions in the extreme ultra-violetJournal of Physics E: Scientific Instruments, 1981
- Self-similar flows with uniform velocity gradient and their use in modelling the free expansion of polytropic gasesJournal of Fluid Mechanics, 1980
- Transient population inversion at 18.2 nm in a laser produced CVI plasmaOptics Communications, 1979
- Model calculations of XUV gain in rapidly expanding cylindrical plasmasJournal of Physics B: Atomic and Molecular Physics, 1976
- Population inversion of Alxiin a laser plasmaSoviet Journal of Quantum Electronics, 1976
- Population Inversions and the Measurement of Gain in Laser-Produced PlasmasPhysical Review Letters, 1975
- Superradiant Line in the Soft—X-Ray RangePhysical Review Letters, 1974
- A spectroscopic study of the recombination of C6+to C5+in an expanding laser-produced plasmaJournal of Physics B: Atomic and Molecular Physics, 1974