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Journal Article

Parametric amplification of a superconducting plasma wave

MPS-Authors
/persons/resource/persons172950

Rajasekaran,  Srivats
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany;

/persons/resource/persons133842

Casandruc,  Eliza
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany;

/persons/resource/persons133815

Laplace,  Yannis
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany;

/persons/resource/persons133789

Nicoletti,  Daniele
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany;

/persons/resource/persons133811

Cavalleri,  Andrea
Quantum Condensed Matter Dynamics, Condensed Matter Dynamics Department, Max Planck Institute for the Structure and Dynamics of Matter, Max Planck Society;
Center for Free-Electron Laser Science, Luruper Chaussee 149, 22761 Hamburg, Germany;
Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, OX1 3PU Oxford, United Kingdom;

External Resource

http://arxiv.org/abs/1511.08378
(Preprint)

http://dx.doi.org/10.1038/nphys3819
(Publisher version)

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Fulltext (public)

1511.08378.pdf
(Preprint), 4MB

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Citation

Rajasekaran, S., Casandruc, E., Laplace, Y., Nicoletti, D., Gu, G. D., Clark, S. R., et al. (2016). Parametric amplification of a superconducting plasma wave. Nature Physics, 12(11), 1012-1016. doi:10.1038/nphys3819.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0029-24C0-D
Abstract
Many applications in photonics require all-optical manipulation of plasma waves, which can concentrate electromagnetic energy on sub-wavelength length scales. This is difficult in metallic plasmas because of their small optical nonlinearities. Some layered superconductors support Josephson plasma waves, involving oscillatory tunnelling of the superfluid between capacitively coupled planes. Josephson plasma waves are also highly nonlinear, and exhibit striking phenomena such as cooperative emission of coherent terahertz radiation, superconductor–metal oscillations and soliton formation. Here, we show that terahertz Josephson plasma waves can be parametrically amplified through the cubic tunnelling nonlinearity in a cuprate superconductor. Parametric amplification is sensitive to the relative phase between pump and seed waves, and may be optimized to achieve squeezing of the order-parameter phase fluctuations or terahertz single-photon devices.