Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma

Intense laser-produced plasma is a complex amalgam of ions, electrons and atoms both in ground and excited states. Little is known about the spatial composition of the excited states that are an integral part of most gaseous or cluster plasma. In cluster-plasma, Rydberg excitations change the charge...

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Main Authors: R Rajeev, T Madhu Trivikram, K P M Rishad, M Krishnamurthy
Format: Article
Language:English
Published: IOP Publishing 2015-01-01
Series:New Journal of Physics
Subjects:
Online Access:https://doi.org/10.1088/1367-2630/17/2/023033
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author R Rajeev
T Madhu Trivikram
K P M Rishad
M Krishnamurthy
author_facet R Rajeev
T Madhu Trivikram
K P M Rishad
M Krishnamurthy
author_sort R Rajeev
collection DOAJ
description Intense laser-produced plasma is a complex amalgam of ions, electrons and atoms both in ground and excited states. Little is known about the spatial composition of the excited states that are an integral part of most gaseous or cluster plasma. In cluster-plasma, Rydberg excitations change the charge composition of the ions through charge transfer reactions and shape the angular distributions. Here, we demonstrate a non-invasive technique that reveals the anisotropic Rydberg excited cluster sheath by measuring anisotropy in fast neutral atoms. The sheath is stronger in the direction of light polarization and the enhanced charge transfer by the excited clusters results in larger neutralization.
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spelling doaj.art-8add088c5e234b74869650dc60fe1a4a2023-08-08T14:17:16ZengIOP PublishingNew Journal of Physics1367-26302015-01-0117202303310.1088/1367-2630/17/2/023033Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasmaR Rajeev0T Madhu Trivikram1K P M Rishad2M Krishnamurthy3Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, IndiaTata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, IndiaTata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, IndiaTata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, 400 005, IndiaIntense laser-produced plasma is a complex amalgam of ions, electrons and atoms both in ground and excited states. Little is known about the spatial composition of the excited states that are an integral part of most gaseous or cluster plasma. In cluster-plasma, Rydberg excitations change the charge composition of the ions through charge transfer reactions and shape the angular distributions. Here, we demonstrate a non-invasive technique that reveals the anisotropic Rydberg excited cluster sheath by measuring anisotropy in fast neutral atoms. The sheath is stronger in the direction of light polarization and the enhanced charge transfer by the excited clusters results in larger neutralization.https://doi.org/10.1088/1367-2630/17/2/023033clustersintense lasersacceleration
spellingShingle R Rajeev
T Madhu Trivikram
K P M Rishad
M Krishnamurthy
Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
New Journal of Physics
clusters
intense lasers
acceleration
title Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
title_full Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
title_fullStr Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
title_full_unstemmed Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
title_short Anisotropic emission of neutral atoms: evidence of an anisotropic Rydberg sheath in nanoplasma
title_sort anisotropic emission of neutral atoms evidence of an anisotropic rydberg sheath in nanoplasma
topic clusters
intense lasers
acceleration
url https://doi.org/10.1088/1367-2630/17/2/023033
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AT tmadhutrivikram anisotropicemissionofneutralatomsevidenceofananisotropicrydbergsheathinnanoplasma
AT kpmrishad anisotropicemissionofneutralatomsevidenceofananisotropicrydbergsheathinnanoplasma
AT mkrishnamurthy anisotropicemissionofneutralatomsevidenceofananisotropicrydbergsheathinnanoplasma