Nanohole-array size dependence of soft x-ray generation enhancement from femtosecond-laser-produced plasma
Nanostructured targets are very attractive for enhancing the intensity of x-ray pulses generated from laser-produced-plasma. In order to clarify the enhancement mechanism, the nanohole-array size dependence of the characteristics of soft x-ray pulse generation from femtosecond-laser-produced plasma...
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| Veröffentlicht in: | Journal of applied physics 2004-12, Vol.96 (12), p.7537-7543 |
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| container_end_page | 7543 |
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| container_issue | 12 |
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| container_title | Journal of applied physics |
| container_volume | 96 |
| creator | Nishikawa, Tadashi Nakano, Hidetoshi Oguri, Katsuya Uesugi, Naoshi Nishio, Kazuyuki Masuda, Hideki |
| description | Nanostructured targets are very attractive for enhancing the intensity of x-ray pulses generated from laser-produced-plasma. In order to clarify the enhancement mechanism, the nanohole-array size dependence of the characteristics of soft x-ray pulse generation from femtosecond-laser-produced plasma was investigated in detail. We found that the highest x-ray intensity can be obtained and the x-ray pulse duration kept relatively short with a nanohole-array alumina target with a 500 nm hole interval and a 450 nm hole diameter. A 40-fold soft x-ray fluence enhancement and a nine-fold soft x-ray pulse peak intensity enhancement can be obtained. The relatively short x-ray pulse duration of 19 ps can be maintained because the target structure has high local density and nanometer-sized spaces. Similar enhancement effects can be expected by using a nanostructured target with wall thickness of less than 100 nm, space size of around a few 100 nm, and nanostructure depth larger than 20 μm. |
| doi_str_mv | 10.1063/1.1814176 |
| format | Article |
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In order to clarify the enhancement mechanism, the nanohole-array size dependence of the characteristics of soft x-ray pulse generation from femtosecond-laser-produced plasma was investigated in detail. We found that the highest x-ray intensity can be obtained and the x-ray pulse duration kept relatively short with a nanohole-array alumina target with a 500 nm hole interval and a 450 nm hole diameter. A 40-fold soft x-ray fluence enhancement and a nine-fold soft x-ray pulse peak intensity enhancement can be obtained. The relatively short x-ray pulse duration of 19 ps can be maintained because the target structure has high local density and nanometer-sized spaces. 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In order to clarify the enhancement mechanism, the nanohole-array size dependence of the characteristics of soft x-ray pulse generation from femtosecond-laser-produced plasma was investigated in detail. We found that the highest x-ray intensity can be obtained and the x-ray pulse duration kept relatively short with a nanohole-array alumina target with a 500 nm hole interval and a 450 nm hole diameter. A 40-fold soft x-ray fluence enhancement and a nine-fold soft x-ray pulse peak intensity enhancement can be obtained. The relatively short x-ray pulse duration of 19 ps can be maintained because the target structure has high local density and nanometer-sized spaces. Similar enhancement effects can be expected by using a nanostructured target with wall thickness of less than 100 nm, space size of around a few 100 nm, and nanostructure depth larger than 20 μm.</description><subject>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</subject><subject>ALUMINIUM OXIDES</subject><subject>DENSITY</subject><subject>LASER-PRODUCED PLASMA</subject><subject>NANOSTRUCTURES</subject><subject>PLASMA PRODUCTION</subject><subject>PULSES</subject><subject>SOFT X RADIATION</subject><subject>THICKNESS</subject><subject>X-RAY SOURCES</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNotkE1LAzEYhIMoWKsH_0HAk4fUvJt0N3uU4hcUveg5ZJM3dks3WZII1l_vlvY0DPMwDEPILfAF8Fo8wAIUSGjqMzIDrlrWLJf8nMw4r4CptmkvyVXOW84BlGhnZPtuQtzEHTKTktnT3P8hdThicBgs0uhpjr7QX3ZIvzFgMqWPgWLYmAkYMBTqUxyox6HEjDYGx3YmY2Jjiu7HoqPj5AdzTS682WW8OemcfD0_fa5e2frj5W31uGZWVKIwZaSR3nrheNUpqUSjUFljROdAdBKktIKDknVjsOsAavSiVV3t2w4lN07Myd2xN-bS62z7gnYzzQpoi654XVeVEBN1f6Rsijkn9HpM_WDSXgPXhys16NOV4h9deWe4</recordid><startdate>20041215</startdate><enddate>20041215</enddate><creator>Nishikawa, Tadashi</creator><creator>Nakano, Hidetoshi</creator><creator>Oguri, Katsuya</creator><creator>Uesugi, Naoshi</creator><creator>Nishio, Kazuyuki</creator><creator>Masuda, Hideki</creator><scope>AAYXX</scope><scope>CITATION</scope><scope>OTOTI</scope></search><sort><creationdate>20041215</creationdate><title>Nanohole-array size dependence of soft x-ray generation enhancement from femtosecond-laser-produced plasma</title><author>Nishikawa, Tadashi ; Nakano, Hidetoshi ; Oguri, Katsuya ; Uesugi, Naoshi ; Nishio, Kazuyuki ; Masuda, Hideki</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c323t-8a4a4fcf3d02b848378e8caa3bd13b4144c3018467aebb116ef398b6f9be40ad3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>70 PLASMA PHYSICS AND FUSION TECHNOLOGY</topic><topic>ALUMINIUM OXIDES</topic><topic>DENSITY</topic><topic>LASER-PRODUCED PLASMA</topic><topic>NANOSTRUCTURES</topic><topic>PLASMA PRODUCTION</topic><topic>PULSES</topic><topic>SOFT X RADIATION</topic><topic>THICKNESS</topic><topic>X-RAY SOURCES</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Nishikawa, Tadashi</creatorcontrib><creatorcontrib>Nakano, Hidetoshi</creatorcontrib><creatorcontrib>Oguri, Katsuya</creatorcontrib><creatorcontrib>Uesugi, Naoshi</creatorcontrib><creatorcontrib>Nishio, Kazuyuki</creatorcontrib><creatorcontrib>Masuda, Hideki</creatorcontrib><collection>CrossRef</collection><collection>OSTI.GOV</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Nishikawa, Tadashi</au><au>Nakano, Hidetoshi</au><au>Oguri, Katsuya</au><au>Uesugi, Naoshi</au><au>Nishio, Kazuyuki</au><au>Masuda, Hideki</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Nanohole-array size dependence of soft x-ray generation enhancement from femtosecond-laser-produced plasma</atitle><jtitle>Journal of applied physics</jtitle><date>2004-12-15</date><risdate>2004</risdate><volume>96</volume><issue>12</issue><spage>7537</spage><epage>7543</epage><pages>7537-7543</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><abstract>Nanostructured targets are very attractive for enhancing the intensity of x-ray pulses generated from laser-produced-plasma. In order to clarify the enhancement mechanism, the nanohole-array size dependence of the characteristics of soft x-ray pulse generation from femtosecond-laser-produced plasma was investigated in detail. We found that the highest x-ray intensity can be obtained and the x-ray pulse duration kept relatively short with a nanohole-array alumina target with a 500 nm hole interval and a 450 nm hole diameter. A 40-fold soft x-ray fluence enhancement and a nine-fold soft x-ray pulse peak intensity enhancement can be obtained. The relatively short x-ray pulse duration of 19 ps can be maintained because the target structure has high local density and nanometer-sized spaces. Similar enhancement effects can be expected by using a nanostructured target with wall thickness of less than 100 nm, space size of around a few 100 nm, and nanostructure depth larger than 20 μm.</abstract><cop>United States</cop><doi>10.1063/1.1814176</doi><tpages>7</tpages></addata></record> |
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| ispartof | Journal of applied physics, 2004-12, Vol.96 (12), p.7537-7543 |
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| source | AIP Journals Complete; AIP Digital Archive |
| subjects | 70 PLASMA PHYSICS AND FUSION TECHNOLOGY ALUMINIUM OXIDES DENSITY LASER-PRODUCED PLASMA NANOSTRUCTURES PLASMA PRODUCTION PULSES SOFT X RADIATION THICKNESS X-RAY SOURCES |
| title | Nanohole-array size dependence of soft x-ray generation enhancement from femtosecond-laser-produced plasma |
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