Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

P. P. Rajeev; S. Banerjee; A. S. Sandhu; R. C. Issac; L. C. Tribedi; G. R. Kumar

doi:10.1103/PhysRevA.65.052903

Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

P. P. Rajeev, S. Banerjee, A. S. Sandhu, R. C. Issac, L. C. Tribedi, G. R. Kumar

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

39 Scopus citations

Abstract

Hard x-ray emission was investigated in the energy range of 30-300 keV from copper plasmas produced by 100-fs, 806-nm laser pulses at intensities in the range of 10¹⁵-10¹⁶ W cm^-2. It was shown that surface roughness of the targets overrides the role of polarization state in the coupling of light to the plasma. Results also showed that the surface roughness has a significant role in enhancing the x-ray emission in the energy range of 30-300 keV.

Original language	English (US)
Article number	052903
Pages (from-to)	529031-529035
Number of pages	5
Journal	Physical Review A - Atomic, Molecular, and Optical Physics
Volume	65
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevA.65.052903
State	Published - May 2002
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "Hard x-ray emission was investigated in the energy range of 30-300 keV from copper plasmas produced by 100-fs, 806-nm laser pulses at intensities in the range of 1015-1016 W cm-2. It was shown that surface roughness of the targets overrides the role of polarization state in the coupling of light to the plasma. Results also showed that the surface roughness has a significant role in enhancing the x-ray emission in the energy range of 30-300 keV.",

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AU - Rajeev, P. P.

AU - Banerjee, S.

AU - Sandhu, A. S.

AU - Issac, R. C.

AU - Tribedi, L. C.

AU - Kumar, G. R.

PY - 2002/5

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AB - Hard x-ray emission was investigated in the energy range of 30-300 keV from copper plasmas produced by 100-fs, 806-nm laser pulses at intensities in the range of 1015-1016 W cm-2. It was shown that surface roughness of the targets overrides the role of polarization state in the coupling of light to the plasma. Results also showed that the surface roughness has a significant role in enhancing the x-ray emission in the energy range of 30-300 keV.

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Role of surface roughness in hard-x-ray emission from femtosecond-laser-produced copper plasmas

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