Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes

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. H...

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Autores principales: Jedrkiewicz, Ottavia, Gatti, Alessandra, Brambilla, Enrico, Levenius, Martin, Tamošauskas, Gintaras, Gallo, Katia
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6072770/
https://www.ncbi.nlm.nih.gov/pubmed/30072813
http://dx.doi.org/10.1038/s41598-018-30014-7
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author Jedrkiewicz, Ottavia
Gatti, Alessandra
Brambilla, Enrico
Levenius, Martin
Tamošauskas, Gintaras
Gallo, Katia
author_facet Jedrkiewicz, Ottavia
Gatti, Alessandra
Brambilla, Enrico
Levenius, Martin
Tamošauskas, Gintaras
Gallo, Katia
author_sort Jedrkiewicz, Ottavia
collection PubMed
description 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.
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spelling pubmed-60727702018-08-07 Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes Jedrkiewicz, Ottavia Gatti, Alessandra Brambilla, Enrico Levenius, Martin Tamošauskas, Gintaras Gallo, Katia Sci Rep Article 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. Nature Publishing Group UK 2018-08-02 /pmc/articles/PMC6072770/ /pubmed/30072813 http://dx.doi.org/10.1038/s41598-018-30014-7 Text en © The Author(s) 2018 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Jedrkiewicz, Ottavia
Gatti, Alessandra
Brambilla, Enrico
Levenius, Martin
Tamošauskas, Gintaras
Gallo, Katia
Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title_full Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title_fullStr Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title_full_unstemmed Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title_short Golden Ratio Gain Enhancement in Coherently Coupled Parametric Processes
title_sort golden ratio gain enhancement in coherently coupled parametric processes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6072770/
https://www.ncbi.nlm.nih.gov/pubmed/30072813
http://dx.doi.org/10.1038/s41598-018-30014-7
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