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Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide

Two-dimensional transition-metal dichalcogenides (TMDCs) with intrinsically broken crystal inversion symmetry and large second-order nonlinear responses have shown great promise for future nonlinear light sources. However, the sub-nanometer monolayer thickness of such materials limits the length of...

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Autores principales: Chen, Haitao, Corboliou, Vincent, Solntsev, Alexander S, Choi, Duk-Yong, Vincenti, Maria A, de Ceglia, Domenico, de Angelis, Costantino, Lu, Yuerui, Neshev, Dragomir N
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6061909/
https://www.ncbi.nlm.nih.gov/pubmed/30167202
http://dx.doi.org/10.1038/lsa.2017.60
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author Chen, Haitao
Corboliou, Vincent
Solntsev, Alexander S
Choi, Duk-Yong
Vincenti, Maria A
de Ceglia, Domenico
de Angelis, Costantino
Lu, Yuerui
Neshev, Dragomir N
author_facet Chen, Haitao
Corboliou, Vincent
Solntsev, Alexander S
Choi, Duk-Yong
Vincenti, Maria A
de Ceglia, Domenico
de Angelis, Costantino
Lu, Yuerui
Neshev, Dragomir N
author_sort Chen, Haitao
collection PubMed
description Two-dimensional transition-metal dichalcogenides (TMDCs) with intrinsically broken crystal inversion symmetry and large second-order nonlinear responses have shown great promise for future nonlinear light sources. However, the sub-nanometer monolayer thickness of such materials limits the length of their nonlinear interaction with light. Here, we experimentally demonstrate the enhancement of the second-harmonic generation from monolayer MoSe(2) by its integration onto a 220-nm-thick silicon waveguide. Such on-chip integration allows for a marked increase in the interaction length between the MoSe(2) and the waveguide mode, further enabling phase matching of the nonlinear process. The demonstrated TMDC–silicon photonic hybrid integration opens the door to second-order nonlinear effects within the silicon photonic platform, including efficient frequency conversion, parametric amplification and the generation of entangled photon pairs.
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spelling pubmed-60619092018-08-30 Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide Chen, Haitao Corboliou, Vincent Solntsev, Alexander S Choi, Duk-Yong Vincenti, Maria A de Ceglia, Domenico de Angelis, Costantino Lu, Yuerui Neshev, Dragomir N Light Sci Appl Original Article Two-dimensional transition-metal dichalcogenides (TMDCs) with intrinsically broken crystal inversion symmetry and large second-order nonlinear responses have shown great promise for future nonlinear light sources. However, the sub-nanometer monolayer thickness of such materials limits the length of their nonlinear interaction with light. Here, we experimentally demonstrate the enhancement of the second-harmonic generation from monolayer MoSe(2) by its integration onto a 220-nm-thick silicon waveguide. Such on-chip integration allows for a marked increase in the interaction length between the MoSe(2) and the waveguide mode, further enabling phase matching of the nonlinear process. The demonstrated TMDC–silicon photonic hybrid integration opens the door to second-order nonlinear effects within the silicon photonic platform, including efficient frequency conversion, parametric amplification and the generation of entangled photon pairs. Nature Publishing Group 2017-10-20 /pmc/articles/PMC6061909/ /pubmed/30167202 http://dx.doi.org/10.1038/lsa.2017.60 Text en Copyright © 2017 The Author(s) http://creativecommons.org/licenses/by-nc-sa/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-sa/4.0/
spellingShingle Original Article
Chen, Haitao
Corboliou, Vincent
Solntsev, Alexander S
Choi, Duk-Yong
Vincenti, Maria A
de Ceglia, Domenico
de Angelis, Costantino
Lu, Yuerui
Neshev, Dragomir N
Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title_full Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title_fullStr Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title_full_unstemmed Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title_short Enhanced second-harmonic generation from two-dimensional MoSe(2) on a silicon waveguide
title_sort enhanced second-harmonic generation from two-dimensional mose(2) on a silicon waveguide
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6061909/
https://www.ncbi.nlm.nih.gov/pubmed/30167202
http://dx.doi.org/10.1038/lsa.2017.60
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