Superconducting emitters of THz radiation

U Welp, K Kadowaki, R Kleiner - Nature Photonics, 2013 - nature.com
Layered superconductors such as the copper-oxide high-temperature superconductor
Bi2Sr2CaCu2O8+ δ are emerging as compact sources of coherent continuous-wave …

Terahertz-wave emission from Bi2212 intrinsic Josephson junctions: A review on recent progress

I Kakeya, H Wang - Superconductor Science and Technology, 2016 - iopscience.iop.org
Emission of terahertz (THz) electromagnetic (EM) waves from a high critical temperature (T
c) superconductor intrinsic Josephson junction (IJJ) is a new and promising candidate for …

Linewidth dependence of coherent terahertz emission from BiSrCaCuO intrinsic Josephson junction stacks in the hot-spot regime

M Li, J Yuan, N Kinev, J Li, B Gross, S Guénon… - Physical Review B …, 2012 - APS
We report on measurements of the linewidth Δ f of terahertz radiation emitted from intrinsic
Josephson junction stacks, using a Nb/AlN/NbN integrated receiver for detection. Previous …

Broadly Tunable Subterahertz Emission from Internal Branches of the Current-Voltage Characteristics of Superconducting Single Crystals

M Tsujimoto, T Yamamoto, K Delfanazari… - Physical review …, 2012 - APS
Continuous, coherent subterahertz radiation arises when a dc voltage is applied across a
stack of the many intrinsic Josephson junctions in a Bi 2 Sr 2 CaCu 2 O 8+ δ single crystal …

High temperature superconductor terahertz emitters: Fundamental physics and its applications

T Kashiwagi, M Tsujimoto, T Yamamoto… - Japanese Journal of …, 2011 - iopscience.iop.org
Coherent and continuous radiation sources of the electromagnetic (EM) waves at terahertz
(1 THz= 10 12 c/s) frequencies using a mesa structure fabricated from high temperature …

Terahertz emission and detection both based on high-Tc superconductors: Towards an integrated receiver

DY An, J Yuan, N Kinev, MY Li, Y Huang, M Ji… - Applied physics …, 2013 - pubs.aip.org
We have combined a stand-alone Bi 2 Sr 2 CaCu 2 O 8 intrinsic Josephson junction stack,
emitting terahertz radiation, with a YBa 2 Cu 3 O 7 grain boundary Josephson junction …

Tunable terahertz emission from BiSrCaCuO mesa devices

TM Benseman, AE Koshelev, KE Gray, WK Kwok… - Physical Review B …, 2011 - APS
We have measured coherent terahertz emission spectra from Bi 2 Sr 2 CaCu 2 O 8+ δ mesa
devices as a function of temperature and mesa bias voltage. The emission frequency is …

Efficient fabrication of intrinsic-Josephson-junction terahertz oscillators with greatly reduced self-heating effects

T Kashiwagi, T Yamamoto, H Minami, M Tsujimoto… - Physical review applied, 2015 - APS
The intrinsic Josephson junctions (IJJs) in the high-T c superconductor Bi 2 Sr 2 CaCu 2 O
8+ δ (Bi2212) are shown to have great potential for the construction of an oscillator emitting …

Compact High-Tc Superconducting Terahertz Emitter with Tunable Frequency from 0.15 to 1 THz

H Sun, S Chen, YL Wang, G Sun, J Chen, T Hatano… - Applied Sciences, 2023 - mdpi.com
A compact cryogenic terahertz emitter is highly desired for applications in terahertz
astronomy with a broad frequency range of emissions and relatively high emission power. In …

Continuous 30 μW terahertz source by a high-Tc superconductor mesa structure

S Sekimoto, C Watanabe, H Minami… - Applied physics …, 2013 - pubs.aip.org
Using a modified mesa structure of high-T c superconducting Bi 2 Sr 2 CaCu 2 O 8+ δ with a
thin underlaying base superconductor (∼ 3 μm), the effective working temperature of the …