Emission of picosecond electromagnetic pulses from optically excited superconducting bridges

被引：21

作者：

Jaekel, C

Roskos, HG

Kurz, H

机构：

[1] Institut für Halbleitertechnik II, RWTH Aachen, D-52056 Aachen

来源：

PHYSICAL REVIEW B | 1996年 / 54卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.54.R6889

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper we examine the origin of the emission of picosecond electromagnetic pulses from current-biased superconducting bridges after optical excitation with femtosecond laser pulses. The peak frequency and the amplitude of the THz pulses are quantitatively correlated to the optically measured quasiparticle dynamics. We find that reflection and absorption within the superconductor fundamentally limit the ratio of the transmitted field amplitude to the generated signal to 10(-3).

引用

收藏

页码：R6889 / R6892

页数：4

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