Nonlinear focusing of terahertz laser beam using a layered superconductor
H. V. Ovcharenko, Z. A. Maizelis, S. S. Apostolov, V. A. Yampol'skii
DOI 10.1103/PhysRevB.106.174511 · Physical Review B
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
We theoretically study the propagation of a terahertz (THz) Gaussian beam through a thin sample of layered superconductor. We consider the beam axis and the superconducting layers to be perpendicular to the sample interface, while the electric field in the beam is perpendicular to the layers. We show that, in such a geometry, the Josephson current between the superconducting layers supports lensing of the beam instead of divergence on the Rayleigh range. Moreover, due to the nonlinearity, the focal length and waist of the transmitted beam depend on the incident beam intensity. These dependencies demonstrate nontrivial hysteresis behavior that can be observed in experiments with THz lasers.
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 |
| La2-δSrδCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La2-δBaδCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
| La1.84Sr0.16CuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | — | Pressure not reported | unknown |
Similar papers
Nonlinear focusing of Terahertz laser beam using layered superconductor
similarity 1.00H. V. Ovcharenko et al. · 2021 · arXiv:2112.05853
Source status unknown — claims are unverified
Layered superconductors as nonlinear lenses for laser beams tunable by dc magnetic field
similarity 0.97N. Kvitka et al.
Source status unknown — claims are unverified
Quantum Terahertz Electrodynamics and Macroscopic Quantum Tunneling in Layered Superconductors
similarity 0.97Sergey Savel’ev et al.
Source status unknown — claims are unverified
Resonant transparency of a layered superconductor: Hyperbolic material in the terahertz range tuned by dc magnetic field
similarity 0.96N. Kvitka et al.
Source status unknown — claims are unverified
Nonlocal macroscopic quantum tunneling and quantum terahertz electrodynamics in layered superconductors: Theory and simulations
similarity 0.96Sergey Savel’ev et al.
Source status unknown — claims are unverified
Enhanced Coherent Terahertz Emission from Critical Superconducting Fluctuations in YBa2Cu3O6.6
similarity 0.96D. Nicoletti et al.
Source status unknown — claims are unverified