Hard x-ray radiation yield from a dense plasma as a function of the wavelength of the heating ultrashort laser pulse
The effect of intensity, length, and wavelength of an ultrashort laser pulse on the formation of a hot electron component in a dense laser-produced plasma was first investigated in a single experiment. For a pulse length of 1 ps (or 200 fs, but with an energy contrast ratio of {approx}20), it was sh...
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| Veröffentlicht in: | Quantum electronics (Woodbury, N.Y.) N.Y.), 2000-06, Vol.30 (6), p.523-528 |
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| creator | Varanavicius, A Vlasov, T V Volkov, Roman V Gavrilov, S A Gordienko, Vyacheslav M Dubetis, A Zeromskis, E Piskarskas, A Savel'ev, Andrei B Tamosauskas, G |
| description | The effect of intensity, length, and wavelength of an ultrashort laser pulse on the formation of a hot electron component in a dense laser-produced plasma was first investigated in a single experiment. For a pulse length of 1 ps (or 200 fs, but with an energy contrast ratio of {approx}20), it was shown that the principal mechanism of generation of hot electrons is the resonance absorption of laser radiation and that the temperature of hot electrons depends on the laser pulse intensity I and the wavelength {lambda} as T{sub h{approx}}(I{lambda}{sup 2}){sup 1/3}. The homogenisation of the nanostructures of porous silicon due to a poor contrast ratio or a long duration (1 ps) of the laser pulse lowers the yield of hard x-ray radiation compared to the case of high-contrast 200-fs pulses. (interaction of laser radiation with matter. laser plasma) |
| doi_str_mv | 10.1070/QE2000v030n06ABEH001757 |
| format | Article |
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For a pulse length of 1 ps (or 200 fs, but with an energy contrast ratio of {approx}20), it was shown that the principal mechanism of generation of hot electrons is the resonance absorption of laser radiation and that the temperature of hot electrons depends on the laser pulse intensity I and the wavelength {lambda} as T{sub h{approx}}(I{lambda}{sup 2}){sup 1/3}. The homogenisation of the nanostructures of porous silicon due to a poor contrast ratio or a long duration (1 ps) of the laser pulse lowers the yield of hard x-ray radiation compared to the case of high-contrast 200-fs pulses. 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For a pulse length of 1 ps (or 200 fs, but with an energy contrast ratio of {approx}20), it was shown that the principal mechanism of generation of hot electrons is the resonance absorption of laser radiation and that the temperature of hot electrons depends on the laser pulse intensity I and the wavelength {lambda} as T{sub h{approx}}(I{lambda}{sup 2}){sup 1/3}. The homogenisation of the nanostructures of porous silicon due to a poor contrast ratio or a long duration (1 ps) of the laser pulse lowers the yield of hard x-ray radiation compared to the case of high-contrast 200-fs pulses. (interaction of laser radiation with matter. laser plasma)</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ABSORPTION</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>ELECTROMAGNETIC RADIATION</subject><subject>ELECTRONS</subject><subject>ELEMENTARY PARTICLES</subject><subject>ELEMENTS</subject><subject>FERMIONS</subject><subject>HARD X RADIATION</subject><subject>HEATING</subject><subject>IONIZING RADIATIONS</subject><subject>LASER RADIATION</subject><subject>LASER-PRODUCED PLASMA</subject><subject>LASERS</subject><subject>LEPTONS</subject><subject>MATERIALS</subject><subject>NANOSTRUCTURES</subject><subject>PLASMA</subject><subject>PLASMA HEATING</subject><subject>POROUS MATERIALS</subject><subject>PULSES</subject><subject>RADIATIONS</subject><subject>RESONANCE ABSORPTION</subject><subject>SEMIMETALS</subject><subject>SILICON</subject><subject>SORPTION</subject><subject>WAVELENGTHS</subject><subject>X RADIATION</subject><issn>1063-7818</issn><issn>1468-4799</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2000</creationdate><recordtype>article</recordtype><recordid>eNqVkU1LxDAQhosoqKu_wYBePFTz1SY9rrK6giCCnsNsPmylm5Ykq-6_N7qKFz14eofhed7DTFEcEXxGsMDn9zOKMX7BDHtcTy9mc4yJqMRWsUd4LUsummY7z7hmpZBE7hb7MT5nQ5Ca7RVpDsGgtzLAGgUwHaRu8Gjd2d4gF4YlAmSsjxaNPcQlIIh541Zef3KDQ6m16BVebG_9U2q_N63NRf4JrfoUILZDSCj7NqBx1Ud7UOw4yHn4lZPi8Wr2cDkvb--uby6nt6VmskmlpgwLrhemdpWWlnPNnXWGyKpmtKLCNJWkDTWCWrPQUmtWZZQ4cHzRAJVsUhxveoeYOhV1l6xu9eC91UlRwjkVtMqU2FA6DDEG69QYuiWEtSJYfZxY_XHibJ5szBGiht4F8LqLP3pFKZUkY3SDdcP4j-7T36SaqY8vKoZVraaEqdE49g6qhpmQ</recordid><startdate>20000630</startdate><enddate>20000630</enddate><creator>Varanavicius, A</creator><creator>Vlasov, T V</creator><creator>Volkov, Roman V</creator><creator>Gavrilov, S A</creator><creator>Gordienko, Vyacheslav M</creator><creator>Dubetis, A</creator><creator>Zeromskis, E</creator><creator>Piskarskas, A</creator><creator>Savel'ev, Andrei B</creator><creator>Tamosauskas, G</creator><general>IOP Publishing</general><general>American Institute of Physics</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20000630</creationdate><title>Hard x-ray radiation yield from a dense plasma as a function of the wavelength of the heating ultrashort laser pulse</title><author>Varanavicius, A ; Vlasov, T V ; Volkov, Roman V ; Gavrilov, S A ; Gordienko, Vyacheslav M ; Dubetis, A ; Zeromskis, E ; Piskarskas, A ; Savel'ev, Andrei B ; Tamosauskas, G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c389t-c23074cbd6f5c8e44c4fefd185632527d958292d72edbc8cc35d6f1faf4b9a283</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2000</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ABSORPTION</topic><topic>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</topic><topic>ELECTROMAGNETIC RADIATION</topic><topic>ELECTRONS</topic><topic>ELEMENTARY PARTICLES</topic><topic>ELEMENTS</topic><topic>FERMIONS</topic><topic>HARD X RADIATION</topic><topic>HEATING</topic><topic>IONIZING RADIATIONS</topic><topic>LASER RADIATION</topic><topic>LASER-PRODUCED PLASMA</topic><topic>LASERS</topic><topic>LEPTONS</topic><topic>MATERIALS</topic><topic>NANOSTRUCTURES</topic><topic>PLASMA</topic><topic>PLASMA HEATING</topic><topic>POROUS MATERIALS</topic><topic>PULSES</topic><topic>RADIATIONS</topic><topic>RESONANCE ABSORPTION</topic><topic>SEMIMETALS</topic><topic>SILICON</topic><topic>SORPTION</topic><topic>WAVELENGTHS</topic><topic>X RADIATION</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Varanavicius, A</creatorcontrib><creatorcontrib>Vlasov, T V</creatorcontrib><creatorcontrib>Volkov, Roman V</creatorcontrib><creatorcontrib>Gavrilov, S A</creatorcontrib><creatorcontrib>Gordienko, Vyacheslav M</creatorcontrib><creatorcontrib>Dubetis, A</creatorcontrib><creatorcontrib>Zeromskis, E</creatorcontrib><creatorcontrib>Piskarskas, A</creatorcontrib><creatorcontrib>Savel'ev, Andrei B</creatorcontrib><creatorcontrib>Tamosauskas, G</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Quantum electronics (Woodbury, N.Y.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Varanavicius, A</au><au>Vlasov, T V</au><au>Volkov, Roman V</au><au>Gavrilov, S A</au><au>Gordienko, Vyacheslav M</au><au>Dubetis, A</au><au>Zeromskis, E</au><au>Piskarskas, A</au><au>Savel'ev, Andrei B</au><au>Tamosauskas, G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Hard x-ray radiation yield from a dense plasma as a function of the wavelength of the heating ultrashort laser pulse</atitle><jtitle>Quantum electronics (Woodbury, N.Y.)</jtitle><date>2000-06-30</date><risdate>2000</risdate><volume>30</volume><issue>6</issue><spage>523</spage><epage>528</epage><pages>523-528</pages><issn>1063-7818</issn><eissn>1468-4799</eissn><abstract>The effect of intensity, length, and wavelength of an ultrashort laser pulse on the formation of a hot electron component in a dense laser-produced plasma was first investigated in a single experiment. For a pulse length of 1 ps (or 200 fs, but with an energy contrast ratio of {approx}20), it was shown that the principal mechanism of generation of hot electrons is the resonance absorption of laser radiation and that the temperature of hot electrons depends on the laser pulse intensity I and the wavelength {lambda} as T{sub h{approx}}(I{lambda}{sup 2}){sup 1/3}. The homogenisation of the nanostructures of porous silicon due to a poor contrast ratio or a long duration (1 ps) of the laser pulse lowers the yield of hard x-ray radiation compared to the case of high-contrast 200-fs pulses. (interaction of laser radiation with matter. laser plasma)</abstract><cop>Woodbury, NY</cop><pub>IOP Publishing</pub><doi>10.1070/QE2000v030n06ABEH001757</doi><tpages>6</tpages></addata></record> |
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| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ABSORPTION CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ELECTROMAGNETIC RADIATION ELECTRONS ELEMENTARY PARTICLES ELEMENTS FERMIONS HARD X RADIATION HEATING IONIZING RADIATIONS LASER RADIATION LASER-PRODUCED PLASMA LASERS LEPTONS MATERIALS NANOSTRUCTURES PLASMA PLASMA HEATING POROUS MATERIALS PULSES RADIATIONS RESONANCE ABSORPTION SEMIMETALS SILICON SORPTION WAVELENGTHS X RADIATION |
| title | Hard x-ray radiation yield from a dense plasma as a function of the wavelength of the heating ultrashort laser pulse |
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