Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma

J. Bruneau; C. Chenais-Popovics; D. Desenne; J. C. Gauthier; J. P. Geindre; M. Klapisch; J. P. Le Breton; M. Louis-Jacquet; D. Naccache; J. P. Perrine

doi:10.1103/PhysRevLett.65.1435

Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma

J. Bruneau^*
, C. Chenais-Popovics
, D. Desenne
, J. C. Gauthier
, J. P. Geindre
, M. Klapisch
, J. P. Le Breton
, M. Louis-Jacquet
, D. Naccache
, J. P. Perrine

^*Corresponding author for this work

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

43 Scopus citations

Abstract

L-shell absorption of germanium transitions has been exploited for the first time to diagnose the low-temperature, high-density region of multilayered targets irradiated by 0.35m laser light at irradiances around 1014 W/cm2. A detailed atomic-physics package has been used to relate the observed absorption wavelengths to the ionic distribution from Ge vii to Ge xx and to the electron plasma parameters. Results show time-dependent temperature variations closely following the driving-laser pulse shape, in agreement with hydrocode simulations.

Original language	English
Pages (from-to)	1435-1438
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	12
DOIs	https://doi.org/10.1103/PhysRevLett.65.1435
State	Published - 1990
Externally published	Yes

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Bruneau, J., Chenais-Popovics, C., Desenne, D., Gauthier, J. C., Geindre, J. P., Klapisch, M., Le Breton, J. P., Louis-Jacquet, M., Naccache, D., & Perrine, J. P. (1990). Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma. Physical Review Letters, 65(12), 1435-1438. https://doi.org/10.1103/PhysRevLett.65.1435

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title = "Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma",

abstract = "L-shell absorption of germanium transitions has been exploited for the first time to diagnose the low-temperature, high-density region of multilayered targets irradiated by 0.35m laser light at irradiances around 1014 W/cm2. A detailed atomic-physics package has been used to relate the observed absorption wavelengths to the ionic distribution from Ge vii to Ge xx and to the electron plasma parameters. Results show time-dependent temperature variations closely following the driving-laser pulse shape, in agreement with hydrocode simulations.",

author = "J. Bruneau and C. Chenais-Popovics and D. Desenne and Gauthier, \{J. C.\} and Geindre, \{J. P.\} and M. Klapisch and \{Le Breton\}, \{J. P.\} and M. Louis-Jacquet and D. Naccache and Perrine, \{J. P.\}",

year = "1990",

doi = "10.1103/PhysRevLett.65.1435",

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Bruneau, J, Chenais-Popovics, C, Desenne, D, Gauthier, JC, Geindre, JP, Klapisch, M, Le Breton, JP, Louis-Jacquet, M, Naccache, D & Perrine, JP 1990, 'Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma', Physical Review Letters, vol. 65, no. 12, pp. 1435-1438. https://doi.org/10.1103/PhysRevLett.65.1435

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T1 - Time-resolved L-shell absorption spectroscopy

T2 - A direct measurement of density and temperature in a germanium laser-produced plasma

AU - Bruneau, J.

AU - Chenais-Popovics, C.

AU - Desenne, D.

AU - Gauthier, J. C.

AU - Geindre, J. P.

AU - Klapisch, M.

AU - Le Breton, J. P.

AU - Louis-Jacquet, M.

AU - Naccache, D.

AU - Perrine, J. P.

PY - 1990

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N2 - L-shell absorption of germanium transitions has been exploited for the first time to diagnose the low-temperature, high-density region of multilayered targets irradiated by 0.35m laser light at irradiances around 1014 W/cm2. A detailed atomic-physics package has been used to relate the observed absorption wavelengths to the ionic distribution from Ge vii to Ge xx and to the electron plasma parameters. Results show time-dependent temperature variations closely following the driving-laser pulse shape, in agreement with hydrocode simulations.

AB - L-shell absorption of germanium transitions has been exploited for the first time to diagnose the low-temperature, high-density region of multilayered targets irradiated by 0.35m laser light at irradiances around 1014 W/cm2. A detailed atomic-physics package has been used to relate the observed absorption wavelengths to the ionic distribution from Ge vii to Ge xx and to the electron plasma parameters. Results show time-dependent temperature variations closely following the driving-laser pulse shape, in agreement with hydrocode simulations.

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 12

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Time-resolved L-shell absorption spectroscopy: A direct measurement of density and temperature in a germanium laser-produced plasma

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