Diagnostic of laser contrast using target reflectivity

A.S. Pirozhkov; I.W. Choi; J.H. Sung; S.K. Lee; T.J. Yu; T.M. Jeong; I.J. Kim; N. Hafz; P. McKenna; D.C. Carroll

doi:10.1063/1.3148330

Diagnostic of laser contrast using target reflectivity

A.S. Pirozhkov, I.W. Choi, J.H. Sung, S.K. Lee, T.J. Yu, T.M. Jeong, I.J. Kim, N. Hafz, P. McKenna, D.C. Carroll

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22 Citations (Scopus)

Abstract

Using three different laser systems, we demonstrate a convenient and simple plasma based diagnostic of the contrast of high-power short-pulse lasers. The technique is based on measuring the specular reflectivity from a solid target. The reflectivity remains high even at relativistic intensities above 10(19) W/cm(2) in the case of a high-contrast prepulse-free laser. On the contrary, the specular reflectivity drops with increasing intensities in the case of systems with insufficient contrast due to beam breakup and increased absorption caused by preplasma.

Original language	English
Pages (from-to)	241102-1-241102-3
Journal	Applied Physics Letters
Volume	94
Issue number	24
DOIs	https://doi.org/10.1063/1.3148330
Publication status	Published - 15 Jun 2009

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Keywords

high-speed optical techniques
laser beams
optical pulse generation
reflectivity

Cite this

Pirozhkov, A. S., Choi, I. W., Sung, J. H., Lee, S. K., Yu, T. J., Jeong, T. M., ... Carroll, D. C. (2009). Diagnostic of laser contrast using target reflectivity. Applied Physics Letters, 94(24), 241102-1-241102-3. https://doi.org/10.1063/1.3148330

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abstract = "Using three different laser systems, we demonstrate a convenient and simple plasma based diagnostic of the contrast of high-power short-pulse lasers. The technique is based on measuring the specular reflectivity from a solid target. The reflectivity remains high even at relativistic intensities above 10(19) W/cm(2) in the case of a high-contrast prepulse-free laser. On the contrary, the specular reflectivity drops with increasing intensities in the case of systems with insufficient contrast due to beam breakup and increased absorption caused by preplasma.",

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AU - Pirozhkov, A.S.

AU - Choi, I.W.

AU - Sung, J.H.

AU - Lee, S.K.

AU - Yu, T.J.

AU - Jeong, T.M.

AU - Kim, I.J.

AU - Hafz, N.

AU - McKenna, P.

AU - Carroll, D.C.

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PY - 2009/6/15

Y1 - 2009/6/15

N2 - Using three different laser systems, we demonstrate a convenient and simple plasma based diagnostic of the contrast of high-power short-pulse lasers. The technique is based on measuring the specular reflectivity from a solid target. The reflectivity remains high even at relativistic intensities above 10(19) W/cm(2) in the case of a high-contrast prepulse-free laser. On the contrary, the specular reflectivity drops with increasing intensities in the case of systems with insufficient contrast due to beam breakup and increased absorption caused by preplasma.

AB - Using three different laser systems, we demonstrate a convenient and simple plasma based diagnostic of the contrast of high-power short-pulse lasers. The technique is based on measuring the specular reflectivity from a solid target. The reflectivity remains high even at relativistic intensities above 10(19) W/cm(2) in the case of a high-contrast prepulse-free laser. On the contrary, the specular reflectivity drops with increasing intensities in the case of systems with insufficient contrast due to beam breakup and increased absorption caused by preplasma.

KW - high-speed optical techniques

KW - laser beams

KW - optical pulse generation

KW - reflectivity

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DO - 10.1063/1.3148330

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10.1063/1.3148330

http://dx.doi.org/10.1063/1.3148330