Superconducting Terahertz Sources with 12% Power Efficiency
R. Cattaneo, E.A. Borodianskyi, A.A. Kalenyuk, V.M. Krasnov
DOI 10.1103/PhysRevApplied.16.L061001 · Physical Review Applied
Active bibliographic source — not scientific approval
Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.
Abstract
Low power efficiency is one of the main problems of terahertz (THz) sources, colloquially known as “the THz gap.” In this work we present prototypes of THz devices based on whisker crystals of a high-temperature superconductor Bi2Sr2CaCu2O8+δ with a record high-radiation power efficiency of 12% at a frequency of approximately 4 THz. We employ various on- and off-chip detection techniques and, in particular, use the radiative cooling phenomenon for accurate evaluation of the emission power. We conclude that such devices can be used for creation of tunable, monochromatic, cw, compact, and power-efficient THz sources.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| Bi2Sr2CaCu2O8+δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Superconducting THz sources with 12% power efficiency
similarity 0.95R. Cattaneo et al. · 2021 · arXiv:2109.00976
Source status unknown — claims are unverified
Upper critical magnetic field for antiferromagnetically correlated d-wave superconductors
similarity 0.95A. Pérez-González & R. A. Brito-Orta
Source status unknown — claims are unverified
Crossover to effectively two-dimensional vortices for high-Tc superconductors
similarity 0.95Petter Minnhagen & Peter Olsson
Source status unknown — claims are unverified
Scaling analysis of normal-state properties of high-temperature superconductors
similarity 0.95H. G. Luo et al.
Source status unknown — claims are unverified
Self-induced terahertz-wave transmissivity of waveguides with finite-length layered superconductors
similarity 0.94T. N. Rokhmanova et al.
Source status unknown — claims are unverified
Optical response of high-Tc cuprates: Possible role of scattering rate saturation and in-plane anisotropy
similarity 0.94N. E. Hussey et al.
Source status unknown — claims are unverified