Direct Picosecond Measurement of Photoinduced Cooper Pair Breaking in Lead

Authors

John F. Federici, AT&T Bell Laboratories
Benjamin I. Greene, AT&T Bell Laboratories
Peter N. Saeta, Harvey Mudd CollegeFollow
Douglas R. Dykaar, AT&T Bell Laboratories
F. Sharifi, University of California - San Diego
R. C. Dynes, University of California - San Diego

Document Type

Article

Department

Physics (HMC)

Publication Date

11-1992

Abstract

We report on a direct kinetic measurement of Cooper-pair breaking in superconducting lead. A 100-fs pulse of visible light was used to excite a thin-film lead sample, while the Cooper-pair density was optically probed using an ultrashort pulse of broadband far-infrared radiation. Subsequent to the absorption of the visible light, a rapid (ps) change in the far-infrared optical transmission was observed, corresponding to the breaking of Cooper pairs and the collapse of the superconducting gap.

Comments

This article is also available from the American Physical Society at http://link.aps.org/doi/10.1103/PhysRevB.46.11153.

Rights Information

© 1992 American Physical Society

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Terms of Use for work posted in Scholarship@Claremont.

DOI

10.1103/PhysRevB.46.11153

Recommended Citation

“Direct picosecond measurement of photo-induced Cooper pair breaking in lead,” J. F. Federici, B. I. Greene, P. N. Saeta, D. R. Dykaar, F. Sharif, and R. C. Dynes, Phys. Rev. B 46, 11153 (1992).