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Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
Udr Como, CNR, Ist Foton & Nanotecnol, Via Valleggio 11, I-22100 Como, Italy..
Udr Como, CNR, Ist Foton & Nanotecnol, Via Valleggio 11, I-22100 Como, Italy.;Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy..
Univ Insubria, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy..
KTH, School of Engineering Sciences (SCI), Applied Physics.
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2018 (English)In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, article id 11616Article in journal (Refereed) Published
Abstract [en]

Nonlinear optical processes are an essential tool in modern optics, with a broad spectrum of applications, including signal processing, frequency conversion, spectroscopy and quantum optics. Ordinary parametric devices nevertheless still suffer from relatively low gains and wide spectral emission. Here we demonstrate a unique configuration for phase- matching multiple nonlinear processes in a monolithic 2D nonlinear photonic crystal, resulting in the coherent parametric emission of four signal and idler modes, featuring an exponential gain enhancement equal to the Golden Ratio. The results indicate a new route towards compact high- brightness and coherent sources for multi- photon generation, manipulation and entanglement, overcoming limitations of conventional parametric devices.

Place, publisher, year, edition, pages
Nature Publishing Group, 2018. Vol. 8, article id 11616
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URN: urn:nbn:se:kth:diva-233277DOI: 10.1038/s41598-018-30014-7ISI: 000440621000033PubMedID: 30072813Scopus ID: 2-s2.0-85051069479OAI: oai:DiVA.org:kth-233277DiVA, id: diva2:1240340
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Swedish Research Council, VR 622-2010-526 621-2014-5407
Note

QC 20180821

Available from: 2018-08-21 Created: 2018-08-21 Last updated: 2018-08-21Bibliographically approved

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