DIRECT PICOSECOND MEASUREMENT OF PHOTOINDUCED COOPER-PAIR BREAKING IN LEAD

被引：30

作者：

FEDERICI, JF ^{[1
]}

GREENE, BI ^{[1
]}

SAETA, PN ^{[1
]}

DYKAAR, DR ^{[1
]}

SHARIFI, F ^{[1
]}

DYNES, RC ^{[1
]}

机构：

[1] UNIV CALIF SAN DIEGO, DEPT PHYS, SAN DIEGO, CA 92103 USA

来源：

PHYSICAL REVIEW B | 1992年 / 46卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.46.11153

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 (< 1 ps) change in the far-infrared optical transmission was observed, corresponding to the breaking of Cooper pairs and the collapse of the superconducting gap.

引用

页码：11153 / 11156

页数：4

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