Journal Article

PUBDB-2016-03238

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Parametric amplification of a superconducting plasma wave

Rajasekaran, S. (Corresponding author)CFEL*MPG* ; Casandruc, E.CFEL*MPG* ; Laplace, Y.Extern* ; Nicoletti, D.CFEL*MPG* ; Gu, G. D. ; Clark, S. R. ; Jaksch, D. ; Cavalleri, A.CFEL*MPG*

2016
Nature Publishing Group Basingstoke

This record in other databases:        

Please use a persistent id in citations: doi:10.1038/nphys3819

Abstract: Many applications in photonics require all-optical manipulation of plasma waves1, 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 waves2, 3, involving oscillatory tunnelling of the superfluid between capacitively coupled planes. Josephson plasma waves are also highly nonlinear4, and exhibit striking phenomena such as cooperative emission of coherent terahertz radiation5, 6, superconductor–metal oscillations7 and soliton formation8. 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 fluctuations9 or terahertz single-photon devices.

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Contributing Institute(s):

1. Forschungsgruppe für strukturelle Dynamik (MPSD)

Research Program(s):

1. 899 - ohne Topic (POF3-899) (POF3-899)

Experiment(s):

1. No specific instrument

Appears in the scientific report 2016

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Database coverage:
; Current Contents - Physical, Chemical and Earth Sciences ; Ebsco Academic Search ; IF >= 5 ; JCR ; Nationallizenz ; SCOPUS ; Science Citation Index ; Science Citation Index Expanded ; Thomson Reuters Master Journal List ; Web of Science Core Collection

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