MECHANISM OF PICOSECOND RESPONSE OF ANTIGRANULOCYTES YBACUO FILMS TO ELECTROMAGNETIC-RADIATION

被引：18

作者：

GERSHENZON, EM

GOLTSMAN, GN

SEMENOV, AD

SERGEEV, AV

机构：

[1] Physical Department, Moscow State Pedagogical Institute 1, Moscow, 119435, M. Pirogovskaya St

来源：

SOLID STATE COMMUNICATIONS | 1990年 / 76卷 / 04期

关键词：

D O I：

10.1016/0038-1098(90)90656-V

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The ultrafast mechanisms of radiation detection in granular YBaCuO films are studied in the wide wavelength range from millimeter to near infrared. With the rise of radiation frequency the Josephson detection at the grain boundary weak links is replaced by electron heating into the grains. This change occurs in the submillimeter wavelength range. Electron-phonon relaxation time τeph is determined by direct measurements and analyses quasistationary electron heating. Temperature dependence of τeph at T ≤ 40 K was found to be τeph ∼ T-1. The results show that detectors with the response time of few picoseconds at nitrogen temperature are attainable. © 1990.

引用

页码：493 / 497

页数：5

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