Results 221 to 230 of about 736,155 (269)
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Shake-up as a mechanism for vacuum-ultraviolet lasers
Optics Letters, 1986We show how electron shake-up, as it occurs during core photoionization, may produce population inversion in the vacuum ultraviolet. Calculations for Li show the possibility of lasers at 165.3 and 113.2 nm.
R G Caro
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Vacuum-ultraviolet lasers and spectroscopy
Proceedings of SPIE, 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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VACUUM ULTRAVIOLET AND EXTREME ULTRAVIOLET LASERS: PRINCIPLES, INSTRUMENTATION, AND APPLICATIONS
Instrumentation Science and 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 ...
Yujun Shi, R H Lipson, S S Dimov
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Extension of 3p→3s Ion Lasers into the Vacuum Ultraviolet Region
Applied Optics, 1975The feasibility of extending existing near-ultraviolet ion lasers into the vacuum ultraviolet spectral region is analyzed with a simplified three-state model. Single-pass amplification in a laser-produced plasma of reasonable length, pump power, and rise-time requirements is predicted, especially for high electron temperatures. The results are intended
R C Elton
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The Long and Short of Lasers (II): The Vacuum Ultraviolet
Science, 1974A L Robinson
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Repetitive vacuum ultraviolet xenon excimer laser
Review of Scientific Instruments, 1979A repetitive, tunable, high-power vacuum ultraviolet laser operating on the 172-nm bound–free transition in xenon has been developed for use in photochemistry, selective excitation spectroscopy, and in the generation of coherent radiation in the XUV spectral region. A compact high-voltage generator is employed in conjunction with a coaxial cold-cathode
C B, Edwards +3 more
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Vacuum-ultraviolet laser-excited spectra of Xe_2
Optics Letters, 1984Fluorescence excitation of Xe(2) at 149.0 nm has been observed using a pulsed supersonic jet for dimer formation and cooling and using tunable coherent VUV radiation from four-wave mixing in Mg vapor for excitation. The resolved vibronic structure resulting from isotopic Xe(2) molecules has yielded unambiguous vibrational numbering (upsilon'=37-46 ...
R H, Lipson +2 more
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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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A vacuum ultraviolet laser study of IBr
Molecular Physics, 1989Vacuum ultraviolet (VUV) fluorescence excitation spectra of jet-cooled IBr, between 173·6 and 163·5 nm, were recorded using tunable, laser-like VUV radiation generated by four-wave mixing in Mg vapour and Xe gas. An unambiguous vibrational analysis shows that transitions from υ″ = 0 of the ground state probe high vibrational levels of the first tier ...
R.H. Lipson, A.R. Hoy
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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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