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dc.contributor.authorLin, PIen_US
dc.contributor.authorWu, KHen_US
dc.contributor.authorJuang, JYen_US
dc.contributor.authorLin, JYen_US
dc.contributor.authorUen, TMen_US
dc.contributor.authorGou, YSen_US
dc.date.accessioned2014-12-08T15:41:17Z-
dc.date.available2014-12-08T15:41:17Z-
dc.date.issued2003-03-01en_US
dc.identifier.issn1051-8223en_US
dc.identifier.urihttp://dx.doi.org/10.1109/TASC.2003.811033en_US
dc.identifier.urihttp://hdl.handle.net/11536/28083-
dc.description.abstractThe characteristics of photogenerated terahertz radiation from a current-biased superconducting YBa2Cu3O7-delta (YBCO) bow-tie antenna were investigated using a free-space electrooptic sampling technique. Picosecond electromagnetic pulses about 450 fs wide were obtained. The frequency spectrum derived by Fourier transforming the picosecond pulses spans over 0.1-4 THz. The dynamics of the quasi-particles optically induced by the ultrafast laser pulse primarily determines the performances of the transient terahertz radiation generated under different operating parameters. The results indicate a characteristic quasi-particle relaxation time of about 2.5 ps close to the critical temperature T-c, and a faster time at lower temperatures.en_US
dc.language.isoen_USen_US
dc.subjectfemtosecond laser illuminationen_US
dc.subjectfree-space electroopticen_US
dc.subjectsampling (FSEOS)en_US
dc.subjectnonequilibrium superconductivityen_US
dc.subjectterahertz radiationen_US
dc.subjectYBa2CU3O7-delta (YBCO)en_US
dc.titleFree-space electrooptic sampling of terahertz radiation from optically excited superconducting YBa2Cu3O7-delta thin filmsen_US
dc.typeArticleen_US
dc.identifier.doi10.1109/TASC.2003.811033en_US
dc.identifier.journalIEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITYen_US
dc.citation.volume13en_US
dc.citation.issue1en_US
dc.citation.spage20en_US
dc.citation.epage24en_US
dc.contributor.department電子物理學系zh_TW
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentDepartment of Electrophysicsen_US
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000182840400004-
dc.citation.woscount3-
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