Cooper Pair Breaking in Lead Measured By Pulsed Terahertz Spectroscopy

J. F. Federici; B. I. Greene; P. N. Saeta; D. R. Dykaar; F. Sharifi; R. C. Dynes

doi:10.1109/77.233620

Cooper Pair Breaking in Lead Measured By Pulsed Terahertz Spectroscopy

J. F. Federici, B. I. Greene, P. N. Saeta, D. R. Dykaar, F. Sharifi, R. C. Dynes

Physics

Research output: Contribution to journal › Comment/debate › peer-review

3 Scopus citations

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.

Original language	English (US)
Pages (from-to)	1461-1464
Number of pages	4
Journal	IEEE Transactions on Applied Superconductivity
Volume	3
Issue number	1
DOIs	https://doi.org/10.1109/77.233620
State	Published - Mar 1993

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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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.",

author = "Federici, {J. F.} and Greene, {B. I.} and Saeta, {P. N.} and Dykaar, {D. R.} and F. Sharifi and Dynes, {R. C.}",

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AU - Federici, J. F.

AU - Greene, B. I.

AU - Saeta, P. N.

AU - Dykaar, D. R.

AU - Sharifi, F.

AU - Dynes, R. C.

PY - 1993/3

Y1 - 1993/3

N2 - 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.

AB - 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.

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

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ER -

Cooper Pair Breaking in Lead Measured By Pulsed Terahertz Spectroscopy

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