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dc.contributor.author
Berdnikov, Yury
dc.contributor.author
Shtrom, Igor
dc.contributor.author
Rozhavskaya, Mariya
dc.contributor.author
Lundin, W V
dc.contributor.author
Hendricks, Nicholas
dc.contributor.author
Grange, Rachel
dc.contributor.author
Timofeeva, Maria
dc.date.accessioned
2021-08-02T12:32:33Z
dc.date.available
2021-07-19T10:51:51Z
dc.date.available
2021-07-20T06:19:46Z
dc.date.available
2021-07-20T13:55:54Z
dc.date.available
2021-08-02T12:32:33Z
dc.date.issued
2021-10
dc.identifier.other
10.1088/1361-6528/ac1017
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/495883
dc.identifier.doi
10.3929/ethz-b-000495883
dc.description.abstract
Engineering nonlinear optical responses at the microscale is a key topic in photonics for achieving efficient frequency conversion and light manipulation. Gallium nitride (GaN) is a promising semiconductor material for integrated nonlinear photonic structures. In this work, we use epitaxially grown GaN microwires as nonlinear optical whispering gallery and Fabry-Perot resonators. We demonstrate an effective generation of second-harmonic and polarization-dependent signals of whispering gallery and Fabry-Perot modes under near-infrared excitation. We show how the rotation of the excitation polarization can be used to control and switch between Fabry-Perot and whispering gallery modes in tapered GaN microwire resonators. We demonstrate the enhancement of two-photon luminescence in the yellow-green spectral range due to efficient coupling between whispering gallery, Fabry-Perot modes, and excitonic states in GaN. This luminescence enhancement allows us to conveniently visualize whispering gallery modes excited with a near-infrared source. Such microwire resonators can be used as compact microlasers or sensing elements in photonic sensors.
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application/pdf
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en
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dc.publisher
Institute of Physics Publishing
en_US
dc.title
Mapping of Fabry-Perot and Whispering Gallery Modes in GaN microwires by Nonlinear imaging
en_US
dc.type
Journal Article
dc.date.published
2021-07-16
ethz.journal.title
Nanotechnology
ethz.journal.volume
32
en_US
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40
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40LT01
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8 p.
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acceptedVersion
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Nonlinear Core-Shell Nanomaterials for Photonic Applications
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All-Dielectric and Hybrid Nanostructures for Biophotonic Applications
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All-dielectric nanowires as building blocks for nonlinear photonics
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Second-Order Nano-Oxides for Enhanced Nonlinear Photonics
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Bristol
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published
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ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02510 - Institut für Quantenelektronik / Institute for Quantum Electronics::09531 - Grange, Rachel / Grange, Rachel
en_US
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ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02010 - Dep. Physik / Dep. of Physics::02510 - Institut für Quantenelektronik / Institute for Quantum Electronics::09531 - Grange, Rachel / Grange, Rachel
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