Detection of Coherent Terahertz Radiation from a High-Temperature Superconductor Josephson Junction by a Semiconductor Quantum-Dot Detector

被引：11
|
作者：
Shaikhaidarov, R. [1 ]
Antonov, V. N. [1 ]
Casey, A. [1 ]
Kalaboukhov, A. [2 ]
Kubatkin, S. [2 ]
Harada, Y. [3 ]
Onomitsu, K. [3 ]
Tzalenchuk, A. [1 ,4 ]
Sobolev, A. [5 ]
机构：
[1] Royal Holloway Univ London, Dept Phys, Egham TW20 0EX, Surrey, England
[2] Chalmers Univ Technol, MC2, S-41296 Gothenburg, Sweden
[3] Basic Res Labs, NTT, Atsugi, Kanagawa 1538902, Japan
[4] Natl Phys Lab, Hampton Rd, Teddington TW11 0LW, Middx, England
[5] Kotelnikov Inst Radio Engn & Elect RAS, Mokhovaya St 11-7, Moscow 125009, Russia
来源：
PHYSICAL REVIEW APPLIED | 2016年 / 5卷 / 02期
基金：
英国工程与自然科学研究理事会;
关键词：
SINGLE-PHOTON DETECTOR; THZ RADIATION; EMISSION; ARRAY;
D O I：
10.1103/PhysRevApplied.5.024010
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We examine the application of Josephson radiation emitters to spectral calibration of single-photon-resolving detectors. Josephson junctions are patterned in a YBCO film on a bicrystal sapphire substrate and are voltage controlled to generate radiation in the frequency range of 0.05-1 THz. The detector used in this work consists of a gate-defined quantum-dot photon-to-charge transducer coupled to a single-electron transistor. Both the emitter and the detector are equipped with a matching on-chip wide-band antenna. The combination of a tuneable emitter and detector allows us to determine the efficacy of the YBCO emitter and also to analyze the elementary processes involved in the detection.
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页数：6
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