Evidence for a Dual-Source Mechanism of Terahertz Radiation from Rectangular Mesas of Single Crystalline Bi2Sr2CaCu2O8+δ Intrinsic Josephson Junctions

被引：87

作者：

Kadowaki, Kazuo ^{[1
]}

Tsujimoto, Manabu ^{[1
]}

Yamaki, Kazuhiro ^{[1
]}

Yamamoto, Takashi ^{[1
]}

Kashiwagi, Takanari ^{[1
]}

Minami, Hidetoshi ^{[1
]}

Tachiki, Masashi ^{[1
]}

Klemm, Richard A. ^{[2
]}

机构：

[1] Univ Tsukuba, Grad Sch Pure & Appl Sci, Tsukuba, Ibaraki 3058573, Japan

[2] Univ Cent Florida, Dept Phys, Orlando, FL 32816 USA

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷 / 02期

基金：

日本科学技术振兴机构;

关键词：

THz radiation; THz emitters; intrinsic Josephson junctions; Josephson plasma; Bi2Sr2CaCu2O8+delta single crystals; ac-Josephson effect; high-T-c superconductors; continuous THz sources; EMISSION;

D O I：

10.1143/JPSJ.79.023703

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The THz radiation emitted from rectangular mesas of single-crystal Bi2Sr2CaCu2O8+delta was studied using angular distribution measurements and Fourier transform infrared spectroscopy. Unlike the recent theoretical predictions, the results provide strong, evidence for a dual-source mechanism in which the uniform and non-uniform parts of the ac-Josephson Current act as electric and magnetic Current Sources, respectively. The latter synchronizes with cavity modes of the mesa with integral harmonics of the fundamental radiation.

引用

页数：4

共 24 条

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