Vacuum ultraviolet spectroscopy study of excimer-laser-generated plasmas
The dispersed emission in the vacuum ultraviolet (VUV) (1200–3000 Å) from the plasma generated by the interaction of a KrF excimer laser with an Al and a YBa2Cu3O7 target has been measured. Emission spectra were collected as a function of distance above the target surface and as a function of laser...
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| Veröffentlicht in: | Journal of applied physics 1993-07, Vol.74 (1), p.53-61 |
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| container_end_page | 61 |
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| container_issue | 1 |
| container_start_page | 53 |
| container_title | Journal of applied physics |
| container_volume | 74 |
| creator | MEHLMAN, G CHRISEY, D. B BURKHALTER, P. G HORWITZ, J. S NEWMAN, D. A |
| description | The dispersed emission in the vacuum ultraviolet (VUV) (1200–3000 Å) from the plasma generated by the interaction of a KrF excimer laser with an Al and a YBa2Cu3O7 target has been measured. Emission spectra were collected as a function of distance above the target surface and as a function of laser fluence. The qualitative features of the plasmas from the two different targets were similar. The character of the emission spectra changed from a pseudocontinuous emission at the target surface to discrete emission from singly, doubly ionized species as well as neutrals at distances greater than ∼1.5 mm. The spatial variation indicated two regions: a high-density sheath along the target where the core emission is close to blackbody; and beyond, a plasma with large opacity emitting a UV spectrum of intensity decreasing fast with distance. Estimates of the plasma temperature and density were between 2 and 4 eV and ∼1018/cm3, respectively. |
| doi_str_mv | 10.1063/1.355267 |
| format | Article |
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B ; BURKHALTER, P. G ; HORWITZ, J. S ; NEWMAN, D. A</creator><creatorcontrib>MEHLMAN, G ; CHRISEY, D. B ; BURKHALTER, P. G ; HORWITZ, J. S ; NEWMAN, D. A</creatorcontrib><description>The dispersed emission in the vacuum ultraviolet (VUV) (1200–3000 Å) from the plasma generated by the interaction of a KrF excimer laser with an Al and a YBa2Cu3O7 target has been measured. Emission spectra were collected as a function of distance above the target surface and as a function of laser fluence. The qualitative features of the plasmas from the two different targets were similar. The character of the emission spectra changed from a pseudocontinuous emission at the target surface to discrete emission from singly, doubly ionized species as well as neutrals at distances greater than ∼1.5 mm. The spatial variation indicated two regions: a high-density sheath along the target where the core emission is close to blackbody; and beyond, a plasma with large opacity emitting a UV spectrum of intensity decreasing fast with distance. 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The spatial variation indicated two regions: a high-density sheath along the target where the core emission is close to blackbody; and beyond, a plasma with large opacity emitting a UV spectrum of intensity decreasing fast with distance. Estimates of the plasma temperature and density were between 2 and 4 eV and ∼1018/cm3, respectively.</description><subject>Exact sciences and technology</subject><subject>Physics</subject><subject>Physics of gases, plasmas and electric discharges</subject><subject>Physics of plasmas and electric discharges</subject><subject>Plasma properties</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1993</creationdate><recordtype>article</recordtype><recordid>eNo9kEFLxDAQhYMoWFfBn9CDBy9dM43NJEdZdFdY8KJeSzqdSKXdlqQV---trHiZB8PH4_EJcQ1yDVKrO1irosg1nogEpLEZFoU8FYmUOWTGoj0XFzF-SglglE3E7t3RNHXp1I7BfTV9y2MaB6Yx9JH6YU7jONVz2vuUv6npOGSti8v94AMHN3KdDsujc_FSnHnXRr76y5V4e3p83eyy_cv2efOwzygv9Jghc67AaIOSdUU5VUiYe6wqKqDyhtBUrL2pLSlwQBI1IaAEMgpJK7USt8deWhbGwL4cQtO5MJcgy18DJZRHAwt6c0QHF8m1PrgDNfGfv7egFw_qB1lQW2w</recordid><startdate>19930701</startdate><enddate>19930701</enddate><creator>MEHLMAN, G</creator><creator>CHRISEY, D. 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A</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><jtitle>Journal of applied physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>MEHLMAN, G</au><au>CHRISEY, D. B</au><au>BURKHALTER, P. G</au><au>HORWITZ, J. S</au><au>NEWMAN, D. A</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Vacuum ultraviolet spectroscopy study of excimer-laser-generated plasmas</atitle><jtitle>Journal of applied physics</jtitle><date>1993-07-01</date><risdate>1993</risdate><volume>74</volume><issue>1</issue><spage>53</spage><epage>61</epage><pages>53-61</pages><issn>0021-8979</issn><eissn>1089-7550</eissn><coden>JAPIAU</coden><abstract>The dispersed emission in the vacuum ultraviolet (VUV) (1200–3000 Å) from the plasma generated by the interaction of a KrF excimer laser with an Al and a YBa2Cu3O7 target has been measured. Emission spectra were collected as a function of distance above the target surface and as a function of laser fluence. The qualitative features of the plasmas from the two different targets were similar. The character of the emission spectra changed from a pseudocontinuous emission at the target surface to discrete emission from singly, doubly ionized species as well as neutrals at distances greater than ∼1.5 mm. The spatial variation indicated two regions: a high-density sheath along the target where the core emission is close to blackbody; and beyond, a plasma with large opacity emitting a UV spectrum of intensity decreasing fast with distance. Estimates of the plasma temperature and density were between 2 and 4 eV and ∼1018/cm3, respectively.</abstract><cop>Woodbury, NY</cop><pub>American Institute of Physics</pub><doi>10.1063/1.355267</doi><tpages>9</tpages></addata></record> |
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| ispartof | Journal of applied physics, 1993-07, Vol.74 (1), p.53-61 |
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| language | eng |
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| source | AIP Digital Archive |
| subjects | Exact sciences and technology Physics Physics of gases, plasmas and electric discharges Physics of plasmas and electric discharges Plasma properties |
| title | Vacuum ultraviolet spectroscopy study of excimer-laser-generated plasmas |
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