Cooper Pair Breaking in Lead Measured By Pulsed Terahertz Spectroscopy

Document Type

Syllabus

Publication Date

1-1-1993

Abstract

We use a new technique of characterizing pulsed far-infrared radiation with a demonstrated resolution of ~100fs to directly measure Cooper pair breaking in superconducting lead. A 100-fs pulse of visible light is used to excite a thin-film lead sample while the Cooper pair density is optically probed using a pulse of broadband far-infrared radiation. Subsequent to the absorption of the visible pulse, a rapid (< 1 ps) change in the far-infrared optical transmission is observed, corresponding to the breaking of Cooper pairs. These results have implications for thin-film superconducting transmission lines carrying short electrical pulses. © 1993 IEEE

Identifier

0027560793 (Scopus)

Publication Title

IEEE Transactions on Applied Superconductivity

External Full Text Location

https://doi.org/10.1109/77.233620

e-ISSN

15582515

ISSN

10518223

First Page

1461

Last Page

1464

Issue

1

Volume

3

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