Multistep ionization of argon clusters in intense femtosecond extreme ultraviolet pulses
The interaction of intense extreme ultraviolet femtosecond laser pulses (lambda = 32.8 nm) from the FLASH free electron laser (FEL) with clusters has been investigated by means of photoelectron spectroscopy and modeled by Monte Carlo simulations. For laser intensities up to 5x10(13) W/cm(2), we find...
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| Veröffentlicht in: | Physical review letters 2008-04, Vol.100 (13), p.133401-133401, Article 133401 |
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| creator | Bostedt, C Thomas, H Hoener, M Eremina, E Fennel, T Meiwes-Broer, K-H Wabnitz, H Kuhlmann, M Plönjes, E Tiedtke, K Treusch, R Feldhaus, J de Castro, A R B Möller, T |
| description | The interaction of intense extreme ultraviolet femtosecond laser pulses (lambda = 32.8 nm) from the FLASH free electron laser (FEL) with clusters has been investigated by means of photoelectron spectroscopy and modeled by Monte Carlo simulations. For laser intensities up to 5x10(13) W/cm(2), we find that the cluster ionization process is a sequence of direct electron emission events in a developing Coulomb field. A nanoplasma is formed only at the highest investigated power densities where ionization is frustrated due to the deep cluster potential. In contrast with earlier studies in the IR and vacuum ultraviolet spectral regime, we find no evidence for electron emission from plasma heating processes. |
| doi_str_mv | 10.1103/physrevlett.100.133401 |
| format | Article |
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For laser intensities up to 5x10(13) W/cm(2), we find that the cluster ionization process is a sequence of direct electron emission events in a developing Coulomb field. A nanoplasma is formed only at the highest investigated power densities where ionization is frustrated due to the deep cluster potential. 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For laser intensities up to 5x10(13) W/cm(2), we find that the cluster ionization process is a sequence of direct electron emission events in a developing Coulomb field. A nanoplasma is formed only at the highest investigated power densities where ionization is frustrated due to the deep cluster potential. In contrast with earlier studies in the IR and vacuum ultraviolet spectral regime, we find no evidence for electron emission from plasma heating processes.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ARGON</subject><subject>CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS</subject><subject>COMPUTERIZED SIMULATION</subject><subject>COULOMB FIELD</subject><subject>ELECTRON EMISSION</subject><subject>EXTREME ULTRAVIOLET RADIATION</subject><subject>FREE ELECTRON LASERS</subject><subject>IONIZATION</subject><subject>MONTE CARLO METHOD</subject><subject>PHOTOELECTRON SPECTROSCOPY</subject><subject>PLASMA HEATING</subject><subject>POWER DENSITY</subject><subject>PULSES</subject><issn>0031-9007</issn><issn>1079-7114</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2008</creationdate><recordtype>article</recordtype><recordid>eNpFkGFL5DAQhoMourf6F6Qg3LfqTNOm7UeROz1YUUTBbyXNTjXSNjVJl9Nf79ztgpAww5uZybyPEKcI54ggL6bXj-Bp01OM5wgsSpkD7okFQlmnJWK-LxYAEtMaoDwSP0J4AwDMVHUojrAqsKwLXIjn27mPNkSaEutG-6kjh8R1ifYvnJh-5jcfEjvyiTQGSjoaogtk3LhO6G_0NFDCQ7zeWMf7JNPcBwrH4qDTnJzs4lI8_f71eHWTru6u_1xdrlJTQB5TpbSqoegypSoo27JuCXRmCmVqrRRbkkhsrei0WbdZudZG51VeqVZrlGxBLsXZdq4L0TbB2EjmlXcbycQmQ8xkxXcpfm6rJu_eZwqxGWww1Pd6JDeHpkQls22h2hYa7wIT7prJ20H7jwah-Ue-uWfyD7RZMXnWWPxPnhtPdz_M7UDr77YdavkF5rODow</recordid><startdate>20080404</startdate><enddate>20080404</enddate><creator>Bostedt, C</creator><creator>Thomas, H</creator><creator>Hoener, M</creator><creator>Eremina, E</creator><creator>Fennel, T</creator><creator>Meiwes-Broer, K-H</creator><creator>Wabnitz, H</creator><creator>Kuhlmann, M</creator><creator>Plönjes, E</creator><creator>Tiedtke, K</creator><creator>Treusch, R</creator><creator>Feldhaus, J</creator><creator>de Castro, A R B</creator><creator>Möller, T</creator><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope><scope>OTOTI</scope></search><sort><creationdate>20080404</creationdate><title>Multistep ionization of argon clusters in intense femtosecond extreme ultraviolet pulses</title><author>Bostedt, C ; 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For laser intensities up to 5x10(13) W/cm(2), we find that the cluster ionization process is a sequence of direct electron emission events in a developing Coulomb field. A nanoplasma is formed only at the highest investigated power densities where ionization is frustrated due to the deep cluster potential. In contrast with earlier studies in the IR and vacuum ultraviolet spectral regime, we find no evidence for electron emission from plasma heating processes.</abstract><cop>United States</cop><pmid>18517951</pmid><doi>10.1103/physrevlett.100.133401</doi><tpages>1</tpages><oa>free_for_read</oa></addata></record> |
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| source | American Physical Society Journals |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ARGON CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS COMPUTERIZED SIMULATION COULOMB FIELD ELECTRON EMISSION EXTREME ULTRAVIOLET RADIATION FREE ELECTRON LASERS IONIZATION MONTE CARLO METHOD PHOTOELECTRON SPECTROSCOPY PLASMA HEATING POWER DENSITY PULSES |
| title | Multistep ionization of argon clusters in intense femtosecond extreme ultraviolet pulses |
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