Results 171 to 180 of about 27,399 (223)
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Physics Bulletin, 1973
The first vacuum ultraviolet laser, operating at around 160 nm in the Lyman band of molecular hydrogen, was developed in 1970 simultaneously at the Naval Research Laboratories (Waynant et al 1970) and IBM (Hodgson 1970). Since then there have been rapid developments in both molecular and quasimolecular lasers operating at wavelengths as short as 110 nm.
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The first vacuum ultraviolet laser, operating at around 160 nm in the Lyman band of molecular hydrogen, was developed in 1970 simultaneously at the Naval Research Laboratories (Waynant et al 1970) and IBM (Hodgson 1970). Since then there have been rapid developments in both molecular and quasimolecular lasers operating at wavelengths as short as 110 nm.
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Vacuum ultraviolet anti-Stokes Raman lasers
IEEE Journal of Quantum Electronics, 1986Anti-Stokes Raman laser schemes in atomic sulphur and selenium are studied, allowing conversion of laser lines out of the 350- 178 nm range into the 200-130 nm range. The necessary population inversion with respect to the atomic metastable1S 0 levels is produced by photodissociation of the molecules COS and COSe with F 2 and ArF laser radiation ...
K. Ludewigt +3 more
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Vacuum ultraviolet excimer lasers
Applied Optics, 1980The operation and characteristics of VUV noble gas excimer lasers are discussed. Some applications to nonlinear optics, photoionization, and photodissociation studies are described.
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HYDROGEN MOLECULAR VACUUM ULTRAVIOLET LASER THEORY
Applied Physics Letters, 1968Calculations indicate that within the Werner band of the H2 molecules laser action is possible at several spectral lines between 1025–1239 Å in a high current discharge with a risetime of a few nsec. The peak power densities are in the kilowatts cm−3 range per spectral line (for strong lines) with pulse half-width of less than 1 nsec.
A. W. Ali, A. C. Kolb
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Vacuum-ultraviolet noble-gas dimer lasers
Soviet Journal of Quantum Electronics, 1976An experimental investigation was made of the shape and intensity of light pulses emitted by an Xe2* laser excited by a relativistic electron beam. The results obtained were used to deduce the line profile and the gain in excited xenon. The authors suggest that the majority of the results obtained should be applicable also to other noble-gas dimer ...
A Wayne Johnson, J B Gerardo, R E Palmer
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Tunable vacuum ultraviolet laser action by argon excimers
Applied Physics Letters, 1980Vacuum ultraviolet lasing was achieved in electron-beam-pumped high-density argon gas (25–65 bars). With a diffraction grating, the argon excimer laser (126 nm) could be tuned between 123.2 and 127.4 nm. The line width of the tuned laser was 0.6 nm and the output power ∼1 kW.
Wrobel, W., Roehr, H., Steuer, K.
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Vacuum-ultraviolet lasers and spectroscopy
SPIE Proceedings, 2012Single-photon ionisation of most atoms and molecules requires short-wavelength radiation, typically in the vacuum-ultraviolet (VUV, lambda < 200 nm) or extreme ultraviolet (XUV, lambda < 105 nm) region of the electromagnetic spectrum. The first VUV and XUV radiation sources used to study molecular photoabsorption and photoionisation spectra were light ...
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Laser resonator for far vacuum ultraviolet
Soviet Journal of Quantum Electronics, 1977The construction of a resonator for the lambdaapprox. =300--700 A range is discussed. A description is given of two normal-incidence resonators in which radiation is coupled out either through a slit in a mirror or by a diffraction grating (in a nonzero diffraction order).
A A Ilyukhin +3 more
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Vacuum Ultraviolet Laser Ablation of Teflon (PTFE)
MRS Proceedings, 1992ABSTRACTVacuum-ultraviolet laser ablation of Teflon is reviewed. The 157 nm irradiation of Teflon produces clean ablation sites well suited to micromachining applications in the electronics and medical fields. At 193 nm, etching profiles are poorly defined, showing swelling characteristics commonly produced by longer wavelength lasers.
Peter R. Herman +2 more
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VACUUM ULTRAVIOLET AND EXTREME ULTRAVIOLET LASERS: PRINCIPLES, INSTRUMENTATION, AND APPLICATIONS
Instrumentation Science & Technology, 2000The foundations of coherent vacuum ultraviolet (VUV), and extreme ultraviolet (XUV) generation by non resonant tripling and two-photon resonance enhanced four wave mixing are presented. An experimental system, currently in operation at the University of Western Ontario, that combines VUV generation, time-of-flight mass spectrometry, supersonic jet ...
R. H. Lipson +6 more
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