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

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

23 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

Keywords

high-speed optical techniques
laser beams
optical pulse generation
reflectivity

Access to Document

10.1063/1.3148330

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

Cite this

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title = "Diagnostic of laser contrast using target reflectivity",

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.",

keywords = "high-speed optical techniques, laser beams, optical pulse generation, reflectivity",

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

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T1 - Diagnostic of laser contrast using target reflectivity

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.

N1 - Strathprints' policy is to record up to 8 authors per publication, plus any additional authors based at the University of Strathclyde. More authors may be listed on the official publication than appear in the Strathprints' record.

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

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

U2 - 10.1063/1.3148330

DO - 10.1063/1.3148330

M3 - Article

VL - 94

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JO - Applied Physics Letters

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