Generation of electromagnetic waves from 0.3 to 1.6 terahertz with a high-Tc superconducting Bi2Sr2CaCu2O8+δ intrinsic Josephson junction emitter

被引：65

作者：

Kashiwagi, Takanari ^{[1
,2
]}

Yamamoto, Takashi ^{[3
]}

Kitamura, Takeo ^{[1
]}

Asanuma, Kentaro ^{[1
]}

Watanabe, Chiharu ^{[1
]}

Nakade, Kurama ^{[1
]}

Yasui, Takaki ^{[1
]}

Saiwai, Yoshihiko ^{[1
]}

Shibano, Yuuki ^{[1
]}

Kubo, Hiroyuki ^{[4
]}

Sakamoto, Kazuki ^{[4
]}

Katsuragawa, Takuya ^{[4
]}

Tsujimoto, Manabu ^{[5
]}

Delfanazari, Kaveh ^{[6
,7
]}

Yoshizaki, Ryozo ^{[1
,2
]}

Minami, Hidetoshi ^{[1
,2
]}

Klemm, Richard A. ^{[8
]}

Kadowaki, Kazuo ^{[1
,2
]}

机构：

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

[2] Univ Tsukuba, Fac Pure & Appl Sci, Div Mat Sci, Tsukuba, Ibaraki 3058573, Japan

[3] Natl Inst Mat Sci, Wide Bandgap Mat Grp, Opt & Elect Mat Unit, Environm & Energy Mat Div, Tsukuba, Ibaraki 3050044, Japan

[4] Univ Tsukuba, Coll Engn Sci, Tsukuba, Ibaraki, Japan

[5] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan

[6] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England

[7] Univ Southampton, Ctr Photon Metamat, Southampton SO17 1BJ, Hants, England

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

来源：

APPLIED PHYSICS LETTERS | 2015年 / 106卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

SINGLE-CRYSTALS; THZ RADIATION;

D O I：

10.1063/1.4914083

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

To obtain higher power P and frequency f emissions from the intrinsic Josephson junctions in a high-T-c superconducting Bi2Sr2CaCu2O8+delta single crystal, we embedded a rectangular stand-alone mesa of that material in a sandwich structure to allow for efficient heat exhaust. By varying the current-voltage (I-V) bias conditions and the bath temperature T-b, f is tunable from 0.3 to 1.6 THz. The maximum P of a few tens of mu W, an order of magnitude greater than from previous devices, was found at T-b similar to 55K on an inner I-V branch at the TM(1,0) cavity resonance mode frequency. The highest f of 1.6 THz was found at T-b = 10K on an inner I-V branch, but away from cavity resonance frequencies. A possible explanation is presented. (C) 2015 AIP Publishing LLC.

引用

页数：5

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