TY - JOUR

T1 - Hybrid optical fiber for light-induced superconductivity

AU - Sedov, Evgeny

AU - Sedova, Irina

AU - Arakelian, Sergey

AU - Eramo, Giuseppe

AU - Kavokin, Alexey

N1 - Sedov, E., Sedova, I., Arakelian, S. et al. Hybrid optical fiber for light-induced superconductivity. Sci Rep 10, 8131 (2020). https://doi.org/10.1038/s41598-020-64970-w

PY - 2020/5/18

Y1 - 2020/5/18

N2 - We exploit the recent proposals for the light-induced superconductivity mediated by a Bose-Einstein condensate of exciton-polaritons to design a superconducting fiber that would enable long-distance transport of a supercurrent at elevated temperatures. The proposed fiber consists of a conventional core made of a silica glass with the first cladding layer formed by a material sustaining dipole-polarised excitons with a binding energy exceeding 25 meV. To be specific, we consider a perovskite cladding layer of 20 nm width. The second cladding layer is made of a conventional superconductor such as aluminium. The fiber is covered by a conventional coating buffer and by a plastic outer jacket. We argue that the critical temperature for a superconducting phase transition in the second cladding layer may be strongly enhanced due to the coupling of the superconductor to a bosonic condensate of exciton-polaritons optically induced by the evanescent part of the guiding mode confined in the core. The guided light mode would penetrate to the first cladding layer and provide the strong exciton-photon coupling regime. We run simulations that confirm the validity of the proposed concept. The fabrication of superconducting fibers where a high-temperature superconductivity could be controlled by light would enable passing superconducting currents over extremely long distances.

AB - We exploit the recent proposals for the light-induced superconductivity mediated by a Bose-Einstein condensate of exciton-polaritons to design a superconducting fiber that would enable long-distance transport of a supercurrent at elevated temperatures. The proposed fiber consists of a conventional core made of a silica glass with the first cladding layer formed by a material sustaining dipole-polarised excitons with a binding energy exceeding 25 meV. To be specific, we consider a perovskite cladding layer of 20 nm width. The second cladding layer is made of a conventional superconductor such as aluminium. The fiber is covered by a conventional coating buffer and by a plastic outer jacket. We argue that the critical temperature for a superconducting phase transition in the second cladding layer may be strongly enhanced due to the coupling of the superconductor to a bosonic condensate of exciton-polaritons optically induced by the evanescent part of the guiding mode confined in the core. The guided light mode would penetrate to the first cladding layer and provide the strong exciton-photon coupling regime. We run simulations that confirm the validity of the proposed concept. The fabrication of superconducting fibers where a high-temperature superconductivity could be controlled by light would enable passing superconducting currents over extremely long distances.

KW - Bose–Einstein condensates

KW - Polaritons

KW - Semiconductors

KW - Superconducting properties and materials

KW - Surfaces, interfaces and thin films

KW - TEMPERATURE

KW - PEROVSKITE SOLAR-CELLS

KW - GAIN

UR - http://www.scopus.com/inward/record.url?scp=85084903224&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/94b96e92-dce0-38f8-a457-a8b125a1a6c4/

U2 - 10.1038/s41598-020-64970-w

DO - 10.1038/s41598-020-64970-w

M3 - Article

C2 - 32424228

AN - SCOPUS:85084903224

VL - 10

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 8131

ER -