Surface waves on a superconductor: beyond the weak-coupling approximation

Glumova, M. V.; Lozovski, V.; Reznik, D.

doi:10.1088/0953-8984/14/17/301

Cited by 2 publications

(2 citation statements)

References 26 publications

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“…In addition to all of these modes, a semi-infinite SC (or a thin SC film) also supports interfacial hybrid charge-radiation modes dubbed surface plasmon polaritons (SPPs), 205 first described by Keller, 206,207 which can be explored for extraordinary transmission through a perforated superconductor with subwavelength holes 208 and for low-loss plasmonics. 209 The energy scale for all these modes is given by the amplitude of the order parameter, which lies in the THz spectral range.…”

Section: ■ Electrodynamics Of Superconductors Probed With Ultraconfin...mentioning

confidence: 99%

Quantum Nanophotonics in Two-Dimensional Materials

et al. 2021

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The field of 2D materials-based nanophotonics has been growing at a rapid pace, triggered by the ability to design nanophotonic systems with in-situ control 1 , unprecedented degrees of freedom, and to build material heterostructures from bottom up with atomic precision 2 . A wide palette of polaritonic classes [3][4][5][6] have been identified, comprising ultra-confined optical fields, even approaching characteristic length-scales of a single atom 7 . These advances have been a real boost for the emerging field of quantum nanophotonics, where the quantum mechanical nature of the electrons and/or polaritons and their interactions become relevant. Examples include, quantum nonlocal effects [8][9][10][11] , ultrastrong light-matter interactions [11][12][13][14][15][16] , Cherenkov radiation 13,17,18 , access to forbidden transitions 11 , hydrodynamic effects [19][20][21] , single-plasmon nonlinearities 22,23 , polaritonic quantization 24 , topological effects etc. 3,4 . In addition to these intrinsic quantum nanophotonic phenomena, the 2D material system can also be used as a sensitive probe for the quantum properties of the material that carries the nanophotonics modes, or quantum materials in its vicinity. Here, polaritons act as a probe for otherwise invisible excitations, e.g. in superconductors 25 , or as a new tool to monitor the existence of Berry curvature in topological materials and superlattice effects in twisted 2D materials.In this article, we present an overview of the emergent field of 2D-material quantum nanophotonics, and provide a future perspective on the prospects of both fundamental emergent phenomena and emergent quantum technologies, such as quantum sensing, single-photon sources and quantum emitters manipulation. We address four main implications (cf. Figure 1): i) quantum sensing, featuring polaritons to probe superconductivity and explore new electronic transport hydrodynamic behaviours, ii) quantum technologies harnessing single-photon generation, manipulation and detection using 2D materials, iii) polariton engineering with quantum materials enabled by twist angle and stacking order control in van der Waals heterostructures and iv) extreme light-matter interactions enabled by the strong confinement of light at atomic level by 2D materials, which provide new tools to manipulate light fields at the nano-scale (e.g., quantum chemistry 26 , nonlocal effects, high Purcell enhancement).

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Section: ■ Electrodynamics Of Superconductors Probed With Ultraconfin...mentioning

confidence: 99%

Quantum Nanophotonics in Two-Dimensional Materials

et al. 2021

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“…For example, this conductivity was calculated for BCS model of superconductivity in the frame of RPA in the work [13]. Using modified UV transformations method, the conductivity was calculated for superconductors with a strong coupling [14].…”

Section: Linear Response On the External Fieldmentioning

confidence: 99%

Electrodynamic linear response of a superconductor film located at the surface of semiconductor

Lozovski¹

2004

Semicond. Phys. Quantum Electron. Optoelectron.

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The susceptibility of thin superconductor film was obtained. The absorption of energy of external electromagnetic field by superconductor film located at a semiconductor substrate was calculated. A new approach to calculation of the dispersion relation for eigenmodes of a strong inhomogeneous system was developed. The dispersion relations of eigenmodes of a superconductor thin film on the semiconductor substrate was calculated using the developed approach.

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Surface waves on a superconductor: beyond the weak-coupling approximation

Cited by 2 publications

References 26 publications

Quantum Nanophotonics in Two-Dimensional Materials

Quantum Nanophotonics in Two-Dimensional Materials

Electrodynamic linear response of a superconductor film located at the surface of semiconductor

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