Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems

D. A. Whelan; C. J. Keane; B. J. Macgowan; Dennis L Matthews; J. E. Trebes; M. J. Eckart

doi:10.1117/12.965049

Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems

D. A. Whelan, C. J. Keane, B. J. Macgowan, Dennis L Matthews, J. E. Trebes, M. J. Eckart

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

Abstract

A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally re-solved measurements the source size for the J=0-1 and the J=2-1 transitions in Ne-like selenium have been determined. Source regions as small as 50 pm have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of order 1 cm-1 I, dnd gain-length products of up to 3.8 are observed on the J=0-1,4d-Lip transitions in Eu+35 at 65.83 and 71.00Å. Analogous transi tions in Yb+42 have been identified and some evidence for ASE has been observed.

Original language	English (US)
Pages (from-to)	275-282
Number of pages	8
Journal	Proceedings of SPIE - The International Society for Optical Engineering
Volume	831
DOIs	https://doi.org/10.1117/12.965049
State	Published - Feb 4 1988
Externally published	Yes

ASJC Scopus subject areas

Applied Mathematics
Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Computer Science Applications

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title = "Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems",

abstract = "A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally re-solved measurements the source size for the J=0-1 and the J=2-1 transitions in Ne-like selenium have been determined. Source regions as small as 50 pm have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of order 1 cm-1 I, dnd gain-length products of up to 3.8 are observed on the J=0-1,4d-Lip transitions in Eu+35 at 65.83 and 71.00{\AA}. Analogous transi tions in Yb+42 have been identified and some evidence for ASE has been observed.",

author = "Whelan, {D. A.} and Keane, {C. J.} and Macgowan, {B. J.} and Matthews, {Dennis L} and Trebes, {J. E.} and Eckart, {M. J.}",

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T1 - Spatially resolved x-ray laser spectra and demonstration of gain in nickel-like systems

AU - Whelan, D. A.

AU - Keane, C. J.

AU - Macgowan, B. J.

AU - Matthews, Dennis L

AU - Trebes, J. E.

AU - Eckart, M. J.

PY - 1988/2/4

Y1 - 1988/2/4

N2 - A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally re-solved measurements the source size for the J=0-1 and the J=2-1 transitions in Ne-like selenium have been determined. Source regions as small as 50 pm have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of order 1 cm-1 I, dnd gain-length products of up to 3.8 are observed on the J=0-1,4d-Lip transitions in Eu+35 at 65.83 and 71.00Å. Analogous transi tions in Yb+42 have been identified and some evidence for ASE has been observed.

AB - A recent series of experiments have provided spatially resolved near field images of several candidate x-ray lasing transition in neon-like, nickel-like, and hydrogen-like ions from laser-produced plasmas. From these time-gated, spatially, and spectrally re-solved measurements the source size for the J=0-1 and the J=2-1 transitions in Ne-like selenium have been determined. Source regions as small as 50 pm have been observed on transitions with gain-length products >9. In addition, we have obtained the first experimental evidence for the amplification of spontaneous emission in the nickel-like ions of europium and ytterbium. Gains of order 1 cm-1 I, dnd gain-length products of up to 3.8 are observed on the J=0-1,4d-Lip transitions in Eu+35 at 65.83 and 71.00Å. Analogous transi tions in Yb+42 have been identified and some evidence for ASE has been observed.

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