Direct picosecond measurement of photoinduced Cooper-pair breaking in lead

Autor:	Peter N. Saeta, F. Sharifi, Douglas R. Dykaar, R. C. Dynes, Benjamin I. Greene, John F. Federici
Rok vydání:	1992
Předmět:	Superconductivity Materials science Condensed matter physics Infrared Picosecond Atomic physics Cooper pair Absorption (electromagnetic radiation) Ultrashort pulse Pulse (physics) Visible spectrum
Zdroj:	Physical Review B. 46:11153-11156
ISSN:	1095-3795 0163-1829
DOI:	10.1103/physrevb.46.11153
Popis:	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.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d93071b8b471f066b5e41b137f7ebf2 https://doi.org/10.1103/physrevb.46.11153 Zobrazit plný text záznamu