Transmission of terahertz waves through layered superconductors controlled by a dc magnetic field

S. S. Apostolov; Z. A. Maizelis; N. M. Makarov; F. Pérez-Rodríguez; T. N. Rokhmanova; V. A. Yampol'skii

doi:10.1103/PhysRevB.94.024513

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Transmission of terahertz waves through layered superconductors controlled by a dc magnetic field

S. S. Apostolov, Z. A. Maizelis, N. M. Makarov, F. Pérez-Rodríguez, T. N. Rokhmanova, V. A. Yampol'skii

DOI 10.1103/PhysRevB.94.024513 · Physical Review B

T1

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Abstract

The transmission of THz electromagnetic waves via a slab of layered superconductor in the presence of dc magnetic field H0 is theoretically studied. We demonstrate that the external dc field turns the layered superconductor into nonuniform medium with spatially and frequency-dependent dielectric permittivity. Even a relatively weak dc magnetic field, when the superconductor is in the Meissner state, significantly affects the transmittance of the layered superconductor. Moreover, the proper choice of H0 can provide the perfect transparency of the slab. In addition, the dc magnetic field changes the dependence of the transmittance on the slab thickness, the frequency, and the incident angle of the wave. Thus, it can serve as an effective tool to control the transmissivity of layered superconductors.

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