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Photoionization-pumped gain at 185 nm in a laser-ablated indium plasma

Lacy, R. A; Nilsson, A. C; Byer, R. L; Silfvast, W. T; Wood, O. R and Svanberg, Sune LU (1989) In Journal of the Optical Society of America B: Optical Physics 6(6). p.1209-1216
Abstract
We reportwhat is to our knowledge the first production of gain by inner-shell photoionization of ions. Photoionization of 4d electrons from In$+$ ions created a population inversion on a 185-nm In2$+$ transition. This scheme is an isoelectronic scaling of the 442-nm Cd$+$ laser. A single-pass gain constant of 0.9 {\textpm} 0.3 cm{\textminus}1 over a 0.4-cm path was pumped by soft x rays generated by less than 50 mJ of 1.06-$\mu$m light focused onto a tantalum target. Laser ablation of a liquid-indium target provided a high density (1016 cm{\textminus}3) of ground-state In$+$ ions for this scheme. An indium amplified spontaneous emission laser and a synchronously pumped indium laser oscillator are proposed.
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of the Optical Society of America B: Optical Physics
volume
6
issue
6
pages
1209 - 1216
publisher
Optical Society of America
external identifiers
  • scopus:30244454845
ISSN
0740-3224
DOI
10.1364/JOSAB.6.001209
language
English
LU publication?
yes
id
1d9ec0f2-48f8-427e-9203-5d6a760a16ea (old id 2258681)
date added to LUP
2012-02-18 13:52:19
date last changed
2017-01-01 07:59:59
@article{1d9ec0f2-48f8-427e-9203-5d6a760a16ea,
  abstract     = {We reportwhat is to our knowledge the first production of gain by inner-shell photoionization of ions. Photoionization of 4d electrons from In$+$ ions created a population inversion on a 185-nm In2$+$ transition. This scheme is an isoelectronic scaling of the 442-nm Cd$+$ laser. A single-pass gain constant of 0.9 {\textpm} 0.3 cm{\textminus}1 over a 0.4-cm path was pumped by soft x rays generated by less than 50 mJ of 1.06-$\mu$m light focused onto a tantalum target. Laser ablation of a liquid-indium target provided a high density (1016 cm{\textminus}3) of ground-state In$+$ ions for this scheme. An indium amplified spontaneous emission laser and a synchronously pumped indium laser oscillator are proposed.},
  author       = {Lacy, R. A and Nilsson, A. C and Byer, R. L and Silfvast, W. T and Wood, O. R and Svanberg, Sune},
  issn         = {0740-3224},
  language     = {eng},
  number       = {6},
  pages        = {1209--1216},
  publisher    = {Optical Society of America},
  series       = {Journal of the Optical Society of America B: Optical Physics},
  title        = {Photoionization-pumped gain at 185 nm in a laser-ablated indium plasma},
  url          = {http://dx.doi.org/10.1364/JOSAB.6.001209},
  volume       = {6},
  year         = {1989},
}