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Author Jaekel, C. ♦ Roskos, H. G. ♦ Kurz, H.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword PHYSICS ♦ HIGH-TC SUPERCONDUCTORS ♦ ELECTROMAGNETIC PULSES ♦ THIN FILMS ♦ YTTRIUM OXIDES ♦ BARIUM OXIDES ♦ COPPER OXIDES ♦ LASER RADIATION ♦ REFLECTIVITY ♦ ABSORPTIVITY ♦ TEMPERATURE DEPENDENCE ♦ TEMPERATURE RANGE 0013-0065 K ♦ TEMPERATURE RANGE 0065-0273 K ♦ COOPER PAIRS ♦ PS RANGE
Abstract In this paper we examine the origin of the emission of picosecond electromagnetic pulses from current-biased superconducting bridges after optical excitation with femtosecond laser pulses. The peak frequency and the amplitude of the THz pulses are quantitatively correlated to the optically measured quasiparticle dynamics. We find that reflection and absorption within the superconductor fundamentally limit the ratio of the transmitted field amplitude to the generated signal to 10{sup {minus}3}. {copyright} {ital 1996 The American Physical Society.}
ISSN 01631829
Educational Use Research
Learning Resource Type Article
Publisher Date 1996-09-01
Publisher Place United States
Journal Physical Review, B: Condensed Matter
Volume Number 54
Issue Number 10


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