S
Stephen J. Smith
Researcher at National Institute of Standards and Technology
Publications - 69
Citations - 2090
Stephen J. Smith is an academic researcher from National Institute of Standards and Technology. The author has contributed to research in topics: Ionization & Laser. The author has an hindex of 24, co-authored 69 publications receiving 2054 citations. Previous affiliations of Stephen J. Smith include Joint Institute for Nuclear Research & University of Colorado Boulder.
Papers
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Electron impact excitation of atoms
TL;DR: The experimental and theoretical literature about the electron impact excitation of atoms is reviewed in this paper, where the reliability of the various methods is discussed and a general critique of the optical method of measuring excitation functions is given, with the objective of promoting higher quality future experimental work.
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Extracavity laser band-shape and bandwidth modification
TL;DR: In this paper, a technique for modifying the laser power spectrum by use of an acousto-optic modulator is described, and the theory of the power spectrum resulting from frequency modulation by Gaussian noise is reviewed.
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Photodetachment Cross Section and the Electron Affinity of Atomic Oxygen
TL;DR: In this article, the absorption cross section for photon energies not too near threshold is obtained directly from one of the experiments, which is used for computation of the radiative attachment coefficient, and other applications of the experimental results are discussed.
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Photodetachment of O - 2
TL;DR: In this article, the cross section for photodetachment was measured for the range of photon energies 0.5 to 3.0 ev. No onset energy is discovered in this range but analysis of the data gives an extrapolated threshold at 0.05 ev.
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Relative Measurement of the Photodetachment Cross Section for H
Stephen J. Smith,David S. Burch +1 more
TL;DR: The spectral dependence of the photodetachnnent cross section for the negative ion of atomic hydrogen was measured in the range from 4.000 to 13.000 A with approximately 300-A resolution.