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Electrically micro-polarized amorphous sodo-niobate film competing with crystalline lithium niobate second-order optical response

Electrically micro-polarized amorphous sodo-niobate film competing with crystalline lithium niobate second-order optical response
Electrically micro-polarized amorphous sodo-niobate film competing with crystalline lithium niobate second-order optical response
The design of active optical devices integrating second‐order nonlinear (SONL) optical responses typically relies on the use of dielectric crystalline materials such as lithium niobate (LN) or semiconductors such as GaAs. Despite high SONL susceptibilities, these materials present important geometry constrains inherent to their crystalline nature limiting the complexity of the designed photonic systems. Conversely, amorphous materials are versatile optical media compatible with broad platform designs possessing a wide range of optical properties attributable to their composition flexibility. Demonstrated here for the first time in an amorphous inorganic material, a magnitude of SONL optical susceptibility (χ(2) = 29 pm V−1 at 1.06 µm) comparable to that of LN single crystal is reported. By using a thermo‐electrical imprinting process, fine control of the induced uniaxial anisotropy is demonstrated at the micrometer scale. This work paves the way for the future design of integrated nonlinear photonic circuits based on amorphous inorganic materials enabled by the spatially selective and high SONL optical susceptibility of these promising and novel optical materials.
amorphous thin films, nonlinear optical materials, poling
2195-1071
Karam, Lara
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Adamietz, Frédéric
1b012c18-29bd-4e12-99e4-55d113253a98
Michau, Dominique
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Gonçalves, Claudia
ceda6bd9-2e54-4cd7-95ed-c9735dda790a
Kang, Myungkoo
07525575-7e8d-4686-8023-dfaddcea9959
Sharma, Rashi
44ce87ed-e60a-45f6-8506-16c10dcb2644
Murugan, Ganapathy Senthil
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Cardinal, Thierry
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Fargin, Evelyn
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Rodriguez, Vincent
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Richardson, Kathleen A.
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Dussauze, Marc
c9023fe6-87e3-40ee-84b7-e8f19cacb158
Karam, Lara
0a1238c1-29ee-465c-8bc3-e1d11557165b
Adamietz, Frédéric
1b012c18-29bd-4e12-99e4-55d113253a98
Michau, Dominique
eb51601e-e7e6-42b0-8884-0e44983a518c
Gonçalves, Claudia
ceda6bd9-2e54-4cd7-95ed-c9735dda790a
Kang, Myungkoo
07525575-7e8d-4686-8023-dfaddcea9959
Sharma, Rashi
44ce87ed-e60a-45f6-8506-16c10dcb2644
Murugan, Ganapathy Senthil
a867686e-0535-46cc-ad85-c2342086b25b
Cardinal, Thierry
09822062-6610-4152-b71d-e6a68e3a1fae
Fargin, Evelyn
584a0241-9c56-4605-ba4c-4ba40d68d1fe
Rodriguez, Vincent
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Richardson, Kathleen A.
11e43b27-46a6-4b82-a3d8-e7d0e911cbec
Dussauze, Marc
c9023fe6-87e3-40ee-84b7-e8f19cacb158

Karam, Lara, Adamietz, Frédéric, Michau, Dominique, Gonçalves, Claudia, Kang, Myungkoo, Sharma, Rashi, Murugan, Ganapathy Senthil, Cardinal, Thierry, Fargin, Evelyn, Rodriguez, Vincent, Richardson, Kathleen A. and Dussauze, Marc (2020) Electrically micro-polarized amorphous sodo-niobate film competing with crystalline lithium niobate second-order optical response. Advanced Optical Materials, 8 (13), [2000202]. (doi:10.1002/adom.202000202).

Record type: Article

Abstract

The design of active optical devices integrating second‐order nonlinear (SONL) optical responses typically relies on the use of dielectric crystalline materials such as lithium niobate (LN) or semiconductors such as GaAs. Despite high SONL susceptibilities, these materials present important geometry constrains inherent to their crystalline nature limiting the complexity of the designed photonic systems. Conversely, amorphous materials are versatile optical media compatible with broad platform designs possessing a wide range of optical properties attributable to their composition flexibility. Demonstrated here for the first time in an amorphous inorganic material, a magnitude of SONL optical susceptibility (χ(2) = 29 pm V−1 at 1.06 µm) comparable to that of LN single crystal is reported. By using a thermo‐electrical imprinting process, fine control of the induced uniaxial anisotropy is demonstrated at the micrometer scale. This work paves the way for the future design of integrated nonlinear photonic circuits based on amorphous inorganic materials enabled by the spatially selective and high SONL optical susceptibility of these promising and novel optical materials.

Text
Electrically Micro-Polarized Amorphous Sodo-Niobate Film Competing with Crystalline Lithium Niobate Second-Order Optical Response - Accepted Manuscript
Restricted to Repository staff only until 7 May 2021.
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More information

Accepted/In Press date: 27 March 2020
e-pub ahead of print date: 7 May 2020
Keywords: amorphous thin films, nonlinear optical materials, poling

Identifiers

Local EPrints ID: 441913
URI: http://eprints.soton.ac.uk/id/eprint/441913
ISSN: 2195-1071
PURE UUID: 120588f7-4da5-4c7a-b9c4-1ddba1687c57
ORCID for Ganapathy Senthil Murugan: ORCID iD orcid.org/0000-0002-2733-3273

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Date deposited: 02 Jul 2020 16:30
Last modified: 18 Feb 2021 17:05

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Contributors

Author: Lara Karam
Author: Frédéric Adamietz
Author: Dominique Michau
Author: Claudia Gonçalves
Author: Myungkoo Kang
Author: Rashi Sharma
Author: Thierry Cardinal
Author: Evelyn Fargin
Author: Vincent Rodriguez
Author: Kathleen A. Richardson
Author: Marc Dussauze

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