X-ray generation by high irradiance subpicosecond lasers

George Amine Kyrala; R. D. Fulton; E. K. Wahlin; L. A. Jones; G. T. Schappert; J. A. Cobble; Antoinette Jane Taylor

doi:10.1063/1.107077

X-ray generation by high irradiance subpicosecond lasers

George Amine Kyrala
, R. D. Fulton
, E. K. Wahlin
, L. A. Jones
, G. T. Schappert
, J. A. Cobble
, Antoinette Jane Taylor

Los Alamos National Laboratory

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

61 Scopus citations

Abstract

We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5×10¹⁸ W/cm ². The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3-6×10²¹ W cm ^-3. The radiance of the 1.73-keV L_α line is measured to be 4×10¹² W/cm²/sr.

Original language	English
Pages (from-to)	2195-2197
Number of pages	3
Journal	Applied Physics Letters
Volume	60
Issue number	18
DOIs	https://doi.org/10.1063/1.107077
State	Published - Dec 1 1992

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@article{d58a2034011841738cbe69abee68982f,

title = "X-ray generation by high irradiance subpicosecond lasers",

abstract = "We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5{\texttimes}1018 W/cm 2. The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8\% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3-6{\texttimes}1021 W cm -3. The radiance of the 1.73-keV Lα line is measured to be 4{\texttimes}1012 W/cm2/sr.",

author = "Kyrala, \{George Amine\} and Fulton, \{R. D.\} and Wahlin, \{E. K.\} and Jones, \{L. A.\} and Schappert, \{G. T.\} and Cobble, \{J. A.\} and Taylor, \{Antoinette Jane\}",

year = "1992",

month = dec,

day = "1",

doi = "10.1063/1.107077",

language = "English",

volume = "60",

pages = "2195--2197",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - X-ray generation by high irradiance subpicosecond lasers

AU - Kyrala, George Amine

AU - Fulton, R. D.

AU - Wahlin, E. K.

AU - Jones, L. A.

AU - Schappert, G. T.

AU - Cobble, J. A.

AU - Taylor, Antoinette Jane

PY - 1992/12/1

Y1 - 1992/12/1

N2 - We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5×1018 W/cm 2. The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3-6×1021 W cm -3. The radiance of the 1.73-keV Lα line is measured to be 4×1012 W/cm2/sr.

AB - We have studied the interaction of 290-fs, 308-nm laser pulses with aluminum targets at irradiances exceeding 5×1018 W/cm 2. The x-ray spectrum is dominated by the H- and He-like lines from aluminum, with the brightest lines radiating 0.8% of the incident laser light energy. This fraction is close to that measured at 50 times less irradiance, but occurs at a slightly higher ionization stage. The x rays are emitted from a region of subcritical electron density at 3-6×1021 W cm -3. The radiance of the 1.73-keV Lα line is measured to be 4×1012 W/cm2/sr.

UR - https://www.scopus.com/pages/publications/0000866131

U2 - 10.1063/1.107077

DO - 10.1063/1.107077

M3 - Article

SN - 0003-6951

VL - 60

SP - 2195

EP - 2197

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 18

ER -

X-ray generation by high irradiance subpicosecond lasers

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