Journal ArticleDOI
Laser emission in the vacuum ultraviolet from molecular hydrogen
R. W. Waynant,J. D. Shipman,R. C. Elton,A. W. Ali +3 more
- Vol. 59, Iss: 4, pp 679-684
TLDR
In this article, the theory of the molecular hydrogen laser is presented and the operation of the device to generate a fast-rising current pulse which travels down the discharge channel at the velocity of light is described.Abstract:
A unique gas laser system suitable for achieving more than a 100-kW peak power in the vacuum ultraviolet spectral region near 1600 A is described. First, the theory of the molecular hydrogen laser is presented. The novel operation of the device to generate a fast-rising current pulse which travels down the discharge channel at the velocity of light is described. Finally, the experimental verification of lasing and further characteristics of the device are given.read more
Citations
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Journal ArticleDOI
Cross sections for the vibrational excitation of the H2(X1∑+g) state via electron collisional excitation of the higher singlet states
TL;DR: In this paper, the ground state of hydrogen, H2X1∑+g (v″=0), leading to vibrational excitation of all fourteen v″ levels was reported.
Journal ArticleDOI
Review of short wavelength laser research
R.W. Waynant,R.C. Elton +1 more
TL;DR: A review of the status of research towards achieving lasing action in the vacuum ultraviolet and soft X-ray spectral regions is presented and various possible methods of verifying the presence of gain with their relative merits are discussed.
Journal ArticleDOI
Pressure and electron temperature dependence of H− density in a hydrogen plasma
TL;DR: In this article, the density of negative ions in a low-pressure hydrogen plasma has been investigated as a function of neutral gas pressure, plasma density, and electron temperature, and the experimental data, obtained by the photodetachment technique, with theoretical results derived from computed reaction rates, seems to indicate that hydrogen negative ion production occurs mainly through the process of electron attachment on vibrationally excited hydrogen molecules.
Journal ArticleDOI
Review of ultraviolet laser physics
TL;DR: A review of the status and properties of coherent sources of ultraviolet radiation is presented in this article, which includes a wide range of developments concerning atomic and molecular systems useful for generating wavelengths below 4000 A, as well as progress in alternative methods of ultraviolet production.
Journal ArticleDOI
Cross sections for the vibrational excitation of the H2 X 1Σ+g(v) levels generated by electron collisional excitation of the higher singlet states
TL;DR: In this paper, the excitation cross sections for an H2 molecule initially in any one of the 15 vibrational levels, v belonging to the ground electronic state and excited to a final vibrational level, were evaluated for direct excitations via all members of the excited electronic singlet spectrum.
References
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Journal ArticleDOI
Plasma refractive index measurements utilizing a He-Ne Vernier interferometric laser
P.S. Zory,G.W. Lynch +1 more
TL;DR: In this article, a simple method is presented for determining the electron density of a CW plasma using the same configuration, fast current switching experiments are also used to check this simple method and to obtain information about the gas density of the CW argon ion laser plasma investigated.
Book ChapterDOI
Scintillation decay times and relative sensitivities with ultraviolet laser excitation
R.W. Waynant,R.C. Elton +1 more
TL;DR: In this paper, an ultraviolet laser with a 2 ns pulse width was used to determine decay times and relative sensitivities of scintillating materials which have been found particularly useful in the vacuum ultraviolet spectral region.