Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils

R. Benocci; D. Batani; R. Dezulian; R. Redaelli; G. Lucchini; F. Canova; H. Stabile; J. Faure; E. Krousky; K. Masek; M. Pfeifer; J. Skala; R. Dudzak; M. Koenig; V. Tikhonchuk; Ph Nicola; V. Malka

doi:10.1063/1.3056396

Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils

R. Benocci
, D. Batani
, R. Dezulian
, R. Redaelli
, G. Lucchini
, F. Canova
, H. Stabile
, J. Faure
, E. Krousky
, K. Masek
, M. Pfeifer
, J. Skala
, R. Dudzak
, M. Koenig
, V. Tikhonchuk
, Ph Nicola
, V. Malka

University of Milano-Bicocca
Laboratory d'Optique Appliquée, ENSTA, CNRS-École Polytechnique
PALS Research Centre
CELIA, Université Bordeaux i, UMR 5107 (CNRS, Bordeaux 1, CEA)

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

Abstract

The process of laser beam homogenization in a gas medium placed in front of a thin metallic foil has been studied. Experiments were performed using the Prague Asterix Laser System iodine laser [Jungwirth, Phys. Plasmas 8, 2495 (2001)] working at 0.44 μm wavelength and irradiance of about 10¹⁵ W cm². Homogenization was detected both by directly analyzing the transmitted laser beam and by studying the shock breakout on the foil rear side. Results show that the gas ionization by the laser pulse induces a strong refraction and produces an effective smoothing of large-scale intensity nonuniformities.

Original language	English
Article number	012703
Journal	Physics of Plasmas
Volume	16
Issue number	1
DOIs	https://doi.org/10.1063/1.3056396
Publication status	Published - 9 Feb 2009

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10.1063/1.3056396

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Benocci, R., Batani, D., Dezulian, R., Redaelli, R., Lucchini, G., Canova, F., Stabile, H., Faure, J., Krousky, E., Masek, K., Pfeifer, M., Skala, J., Dudzak, R., Koenig, M., Tikhonchuk, V., Nicola, P., & Malka, V. (2009). Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils. Physics of Plasmas, 16(1), Article 012703. https://doi.org/10.1063/1.3056396

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title = "Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils",

abstract = "The process of laser beam homogenization in a gas medium placed in front of a thin metallic foil has been studied. Experiments were performed using the Prague Asterix Laser System iodine laser [Jungwirth, Phys. Plasmas 8, 2495 (2001)] working at 0.44 μm wavelength and irradiance of about 1015 W cm2. Homogenization was detected both by directly analyzing the transmitted laser beam and by studying the shock breakout on the foil rear side. Results show that the gas ionization by the laser pulse induces a strong refraction and produces an effective smoothing of large-scale intensity nonuniformities.",

author = "R. Benocci and D. Batani and R. Dezulian and R. Redaelli and G. Lucchini and F. Canova and H. Stabile and J. Faure and E. Krousky and K. Masek and M. Pfeifer and J. Skala and R. Dudzak and M. Koenig and V. Tikhonchuk and Ph Nicola and V. Malka",

year = "2009",

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Benocci, R, Batani, D, Dezulian, R, Redaelli, R, Lucchini, G, Canova, F, Stabile, H, Faure, J, Krousky, E, Masek, K, Pfeifer, M, Skala, J, Dudzak, R, Koenig, M, Tikhonchuk, V, Nicola, P & Malka, V 2009, 'Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils', Physics of Plasmas, vol. 16, no. 1, 012703. https://doi.org/10.1063/1.3056396

TY - JOUR

T1 - Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils

AU - Benocci, R.

AU - Batani, D.

AU - Dezulian, R.

AU - Redaelli, R.

AU - Lucchini, G.

AU - Canova, F.

AU - Stabile, H.

AU - Faure, J.

AU - Krousky, E.

AU - Masek, K.

AU - Pfeifer, M.

AU - Skala, J.

AU - Dudzak, R.

AU - Koenig, M.

AU - Tikhonchuk, V.

AU - Nicola, Ph

AU - Malka, V.

PY - 2009/2/9

Y1 - 2009/2/9

N2 - The process of laser beam homogenization in a gas medium placed in front of a thin metallic foil has been studied. Experiments were performed using the Prague Asterix Laser System iodine laser [Jungwirth, Phys. Plasmas 8, 2495 (2001)] working at 0.44 μm wavelength and irradiance of about 1015 W cm2. Homogenization was detected both by directly analyzing the transmitted laser beam and by studying the shock breakout on the foil rear side. Results show that the gas ionization by the laser pulse induces a strong refraction and produces an effective smoothing of large-scale intensity nonuniformities.

AB - The process of laser beam homogenization in a gas medium placed in front of a thin metallic foil has been studied. Experiments were performed using the Prague Asterix Laser System iodine laser [Jungwirth, Phys. Plasmas 8, 2495 (2001)] working at 0.44 μm wavelength and irradiance of about 1015 W cm2. Homogenization was detected both by directly analyzing the transmitted laser beam and by studying the shock breakout on the foil rear side. Results show that the gas ionization by the laser pulse induces a strong refraction and produces an effective smoothing of large-scale intensity nonuniformities.

U2 - 10.1063/1.3056396

DO - 10.1063/1.3056396

M3 - Article

AN - SCOPUS:59349104184

SN - 1070-664X

VL - 16

JO - Physics of Plasmas

JF - Physics of Plasmas

IS - 1

M1 - 012703

ER -

Direct evidence of gas-induced laser beam smoothing in the interaction with thin foils

Abstract

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