AlGaN/AlN heterostructures: an emerging platform for integrated photonics

Abstract We introduce a novel material for integrated photonics and investigate aluminum gallium nitride (AlGaN) on aluminum nitride (AlN) templates as a platform for developing reconfigurable and on-chip nonlinear optical devices. AlGaN combines compatibility with standard photonic fabrication tech...

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Main Authors: Sinan Gündoğdu, Sofia Pazzagli, Tommaso Pregnolato, Tim Kolbe, Sylvia Hagedorn, Markus Weyers, Tim Schröder
Format: Article
Language:English
Published: Nature Portfolio 2025-01-01
Series:npj Nanophotonics
Online Access:https://doi.org/10.1038/s44310-024-00048-z
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author Sinan Gündoğdu
Sofia Pazzagli
Tommaso Pregnolato
Tim Kolbe
Sylvia Hagedorn
Markus Weyers
Tim Schröder
author_facet Sinan Gündoğdu
Sofia Pazzagli
Tommaso Pregnolato
Tim Kolbe
Sylvia Hagedorn
Markus Weyers
Tim Schröder
author_sort Sinan Gündoğdu
collection DOAJ
description Abstract We introduce a novel material for integrated photonics and investigate aluminum gallium nitride (AlGaN) on aluminum nitride (AlN) templates as a platform for developing reconfigurable and on-chip nonlinear optical devices. AlGaN combines compatibility with standard photonic fabrication technologies and high electro-optic modulation capabilities with low loss over a broad spectral range, from UVC to long-wave infrared, making it a viable material for complex photonic applications. In this work, we design and grow AlGaN/AlN heterostructures and integrate several photonic components. In particular, we fabricate edge couplers, low-loss waveguides, directional couplers, and tunable high-quality factor ring resonators. These devices will enable nonlinear light-matter interaction and quantum functionality. The comprehensive platform we present in this work paves the way for photon-pair generation applications, on-chip quantum frequency conversion, and fast electro-optic modulation for switching and routing classical and quantum light fields.
format Article
id doaj-art-ae9c4c346b494ead86cfef1758293e4f
institution Kabale University
issn 2948-216X
language English
publishDate 2025-01-01
publisher Nature Portfolio
record_format Article
series npj Nanophotonics
spelling doaj-art-ae9c4c346b494ead86cfef1758293e4f2025-01-12T12:26:36ZengNature Portfolionpj Nanophotonics2948-216X2025-01-01211810.1038/s44310-024-00048-zAlGaN/AlN heterostructures: an emerging platform for integrated photonicsSinan Gündoğdu0Sofia Pazzagli1Tommaso Pregnolato2Tim Kolbe3Sylvia Hagedorn4Markus Weyers5Tim Schröder6Department of Physics, Humboldt-Universität zu BerlinDepartment of Physics, Humboldt-Universität zu BerlinDepartment of Physics, Humboldt-Universität zu BerlinFerdinand-Braun-Institut (FBH)Ferdinand-Braun-Institut (FBH)Ferdinand-Braun-Institut (FBH)Department of Physics, Humboldt-Universität zu BerlinAbstract We introduce a novel material for integrated photonics and investigate aluminum gallium nitride (AlGaN) on aluminum nitride (AlN) templates as a platform for developing reconfigurable and on-chip nonlinear optical devices. AlGaN combines compatibility with standard photonic fabrication technologies and high electro-optic modulation capabilities with low loss over a broad spectral range, from UVC to long-wave infrared, making it a viable material for complex photonic applications. In this work, we design and grow AlGaN/AlN heterostructures and integrate several photonic components. In particular, we fabricate edge couplers, low-loss waveguides, directional couplers, and tunable high-quality factor ring resonators. These devices will enable nonlinear light-matter interaction and quantum functionality. The comprehensive platform we present in this work paves the way for photon-pair generation applications, on-chip quantum frequency conversion, and fast electro-optic modulation for switching and routing classical and quantum light fields.https://doi.org/10.1038/s44310-024-00048-z
spellingShingle Sinan Gündoğdu
Sofia Pazzagli
Tommaso Pregnolato
Tim Kolbe
Sylvia Hagedorn
Markus Weyers
Tim Schröder
AlGaN/AlN heterostructures: an emerging platform for integrated photonics
npj Nanophotonics
title AlGaN/AlN heterostructures: an emerging platform for integrated photonics
title_full AlGaN/AlN heterostructures: an emerging platform for integrated photonics
title_fullStr AlGaN/AlN heterostructures: an emerging platform for integrated photonics
title_full_unstemmed AlGaN/AlN heterostructures: an emerging platform for integrated photonics
title_short AlGaN/AlN heterostructures: an emerging platform for integrated photonics
title_sort algan aln heterostructures an emerging platform for integrated photonics
url https://doi.org/10.1038/s44310-024-00048-z
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AT sofiapazzagli alganalnheterostructuresanemergingplatformforintegratedphotonics
AT tommasopregnolato alganalnheterostructuresanemergingplatformforintegratedphotonics
AT timkolbe alganalnheterostructuresanemergingplatformforintegratedphotonics
AT sylviahagedorn alganalnheterostructuresanemergingplatformforintegratedphotonics
AT markusweyers alganalnheterostructuresanemergingplatformforintegratedphotonics
AT timschroder alganalnheterostructuresanemergingplatformforintegratedphotonics