Bi2Sr2CaCu2O8 Intrinsic Josephson junctions as coherent THz emitters

Bi2Sr2CaCu2O8 本征约瑟夫森结作为相干太赫兹发射器

• 批准号: 239939113
• 负责人: Professor Dr. Reinhold Kleiner
• 金额: --
• 依托单位: Kotelnikov Institute of Radioengineering and Electronics
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2013
• 资助国家: 德国
• 起止时间: 2012-12-31 至 2021-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/239939113?language=en
• 关键词: Bi2Sr2CaCu2O8; Intrinsic; Josephson; junctions; coherent

There is still a lack of good active or passive devices operating in the Terahertz (THz) range. Such devices would open a window to applications like non-destructive imaging for materials testing or medical diagnosis, or to novel spectroscopic studies of materials and molecules. Stacks of intrinsic Josephson junctions made of the high temperature superconductor Bi2Sr2CaCu2O8 have recently been shown to operate in this regime. The objective of the present proposal is to investigate THz emission from intrinsic Josephson junction stacks. The goals are twofold: On the one hand we want to understand and model the mechanism of THz generation. Particularly, in the high bias regime where a hot spot and a cold region producing the THz radiation coexist, the mechanism of THz generation is not understood well. A detailed understanding will be necessary to find limits on, e.g., the maximum emission power and the minimum linewidth that can be achieved either for single stacks or for arrays of stacks. The second task is to optimize THz emission from intrinsic junction stacks on experimental grounds and offer demonstrations of applications (e. g. in terms of spectroscopy or THz imaging). Both parts will be performed in close collaboration between the groups of H. B. Wang (National Institute of Material Science, Tsukuba and Research Institute of Superconductor Electronics, Nanjing), V. P. Koshelets (Kotel'nikov Institute of Radio Engineering and Electronics, Moskau) and the applicant.

在太赫兹(THz)范围内工作的好的有源或无源设备仍然缺乏。这类设备将为材料测试或医疗诊断的无损成像等应用打开一扇窗，或者为材料和分子的新光谱研究打开一扇窗。由高温超导体Bi2Sr2CaCu2O8制成的层叠的本征约瑟夫森结最近被证明在这一区域工作。本方案的目的是研究本征约瑟夫森结堆栈的太赫兹辐射。目标有两个：一方面，我们想要了解太赫兹产生的机制并对其进行建模。特别是在产生THz辐射的热点和冷区共存的高偏压区域，THz的产生机制还没有被很好地理解。有必要进行详细的了解，以找出例如对于单个堆叠或堆叠阵列可以实现的最大发射功率和最小线宽的限制。第二个任务是在实验场地上优化本征结堆栈的太赫兹发射，并提供应用演示(例如，在光谱学或太赫兹成像方面)。这两个部分将由H.B.Wang(筑波国家材料科学研究所和南京超导电子研究所)、V.P.Koshelets(莫斯科科泰尔尼科夫无线电工程和电子研究所)和申请人小组密切合作完成。

项目成果

12. Bi2Sr2CaCu2O8 intrinsic Josephson junction stacks as emitters of terahertz radiation

12 个 Bi2Sr2CaCu2O8 本征约瑟夫森结堆叠作为太赫兹辐射发射器

• DOI: 10.1515/9783110456806-013
• 发表时间: 2017
• 作者: R. Kleiner;H.-B. Wang
• 通讯作者: H.-B. Wang

Terahertz emission from Bi2Sr2CaCu2O8+x intrinsic Josephson junction stacks

• DOI: 10.1063/1.5116660
• 发表时间: 2019-11-07
• 期刊: JOURNAL OF APPLIED PHYSICS
• 影响因子: 3.2
• 作者: Kleiner, Reinhold;Wang, Huabing
• 通讯作者: Wang, Huabing

Hybrid Nb/Al/Ba0.5K0.5Fe2As2 sandwich Josephson junctions

混合 Nb/Al/Ba0.5K0.5Fe2As2 夹层约瑟夫森结

• DOI: 10.1088/1361-6668/ab601f
• 发表时间: 2020-01
• 期刊: Superconductor Science and Technology
• 影响因子: 3.6
• 作者: Tian Wanghao;Lv Yangyang;Xu Zuyu;Zhang Huili;Chen Shixian;Dong Sining;Li Jun;Wang Yong-Lei;Koelle Dieter;Kleiner Reinhold;Wang Huabing;Wu Peiheng
• 通讯作者: Wu Peiheng

On-chip sensing of hotspots in superconducting terahertz emitters.

• DOI: 10.1021/acs.nanolett.0c00551
• 发表时间: 2020-01
• 期刊: Nano letters
• 影响因子: 10.8
• 作者: Xianjing Zhou;Xu Han;D. Koelle;R. Kleiner;U. Welp;Xufeng Zhang;D. Jin

Terahertz Spectroscopy of Dilute Gases Using Bi2Sr2CaCu2O8+delta Intrinsic Josephson-Junction Stacks

使用 Bi2Sr2CaCu2O8 δ 本征约瑟夫森结堆栈对稀气体进行太赫兹光谱分析

• DOI: 10.1103/physrevapplied.8.054005
• 发表时间: 2017-11
• 期刊: Physical Review Applied
• 影响因子: 4.6
• 作者: Sun Hancong;Yang Zhibao;Kinev Nickolay V.;Kiselev Oleg S.;Lv Yangyang;Huang Ya;Hao Luyao;Zhou Xianjing;Ji Min;Tu Xuecou;Zhang Caihong;Li Jun;Rudau Fabian;Wiel;Raphael;Hampp Johannes S.;Kizilaslan Olcay;Koelle Dieter;Jin Biaobing;Chen Jian;Kang Lin;Xu W
• 通讯作者: Xu W