Short pulse pumped X-ray lasers

G J Tallents; F Strati; J Y Lin; R Smith; S J Pestehe; G J Pert; C L S Lewis; A G MacPhee; R Keenan

Short pulse pumped X-ray lasers

G J Tallents, F Strati, J Y Lin, R Smith, S J Pestehe, G J Pert, C L S Lewis, A G MacPhee, R Keenan

Physics

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

Abstract

Double laser pulses of duration similar to 75 ps and short laser pulses similar to 1 ps superimposed on longer duration background pulses have been shown to efficiently pump lasing in Ne-like and Ni-like ions. For the 75 ps pumping, X-ray laser output without travelling wave pumping is shown to be well-described by a model of ASE output. With I ps pumping, the X-ray laser output with different velocity travelling wave pumping is well-fitted with an extension to the ASE model allowing for travelling wave excitation of the gain along the plasma line. The model is used to investigate the production of short (< 1 ps) x-ray laser pulses and the effects of non-ideal travelling wave velocities on the X-ray laser output. Resonance line spectra of emission perpendicular to the plasma line are measured and simulated. It is shown that an accurate opacity model for the more intense Ne-like ions is needed to correctly simulate the spectra.

Original language	English
Pages (from-to)	59-66
Number of pages	8
Journal	Journal de physique iv
Volume	11
Issue number	PR2
Publication status	Published - Jul 2001

Keywords

XUV LASER
GERMANIUM
OPTIMIZATION
NM

Cite this

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title = "Short pulse pumped X-ray lasers",

abstract = "Double laser pulses of duration similar to 75 ps and short laser pulses similar to 1 ps superimposed on longer duration background pulses have been shown to efficiently pump lasing in Ne-like and Ni-like ions. For the 75 ps pumping, X-ray laser output without travelling wave pumping is shown to be well-described by a model of ASE output. With I ps pumping, the X-ray laser output with different velocity travelling wave pumping is well-fitted with an extension to the ASE model allowing for travelling wave excitation of the gain along the plasma line. The model is used to investigate the production of short (< 1 ps) x-ray laser pulses and the effects of non-ideal travelling wave velocities on the X-ray laser output. Resonance line spectra of emission perpendicular to the plasma line are measured and simulated. It is shown that an accurate opacity model for the more intense Ne-like ions is needed to correctly simulate the spectra.",

keywords = "XUV LASER, GERMANIUM, OPTIMIZATION, NM",

author = "Tallents, {G J} and F Strati and Lin, {J Y} and R Smith and Pestehe, {S J} and Pert, {G J} and Lewis, {C L S} and MacPhee, {A G} and R Keenan",

year = "2001",

month = jul,

language = "English",

volume = "11",

pages = "59--66",

journal = "Journal de physique iv",

issn = "1155-4339",

publisher = "EDP Sciences",

number = "PR2",

}

TY - JOUR

T1 - Short pulse pumped X-ray lasers

AU - Tallents, G J

AU - Strati, F

AU - Lin, J Y

AU - Smith, R

AU - Pestehe, S J

AU - Pert, G J

AU - Lewis, C L S

AU - MacPhee, A G

AU - Keenan, R

PY - 2001/7

Y1 - 2001/7

N2 - Double laser pulses of duration similar to 75 ps and short laser pulses similar to 1 ps superimposed on longer duration background pulses have been shown to efficiently pump lasing in Ne-like and Ni-like ions. For the 75 ps pumping, X-ray laser output without travelling wave pumping is shown to be well-described by a model of ASE output. With I ps pumping, the X-ray laser output with different velocity travelling wave pumping is well-fitted with an extension to the ASE model allowing for travelling wave excitation of the gain along the plasma line. The model is used to investigate the production of short (< 1 ps) x-ray laser pulses and the effects of non-ideal travelling wave velocities on the X-ray laser output. Resonance line spectra of emission perpendicular to the plasma line are measured and simulated. It is shown that an accurate opacity model for the more intense Ne-like ions is needed to correctly simulate the spectra.

AB - Double laser pulses of duration similar to 75 ps and short laser pulses similar to 1 ps superimposed on longer duration background pulses have been shown to efficiently pump lasing in Ne-like and Ni-like ions. For the 75 ps pumping, X-ray laser output without travelling wave pumping is shown to be well-described by a model of ASE output. With I ps pumping, the X-ray laser output with different velocity travelling wave pumping is well-fitted with an extension to the ASE model allowing for travelling wave excitation of the gain along the plasma line. The model is used to investigate the production of short (< 1 ps) x-ray laser pulses and the effects of non-ideal travelling wave velocities on the X-ray laser output. Resonance line spectra of emission perpendicular to the plasma line are measured and simulated. It is shown that an accurate opacity model for the more intense Ne-like ions is needed to correctly simulate the spectra.

KW - XUV LASER

KW - GERMANIUM

KW - OPTIMIZATION

KW - NM

M3 - Article

SN - 1155-4339

VL - 11

SP - 59

EP - 66

JO - Journal de physique iv

JF - Journal de physique iv

IS - PR2

ER -