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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Lysevych, Mykhaylo
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (13/13 displayed)
- 2023Core-shell GaN/AlGaN nanowires grown by selective area epitaxycitations
- 2022Nonpolar Al xGa1−xN/Al yGa1−yN multiple quantum wells on GaN nanowire for UV emissioncitations
- 2022Far-Field Polarization Engineering from Nonlinear Nanoresonatorscitations
- 2022Selective Area Growth of GaN Nanowirecitations
- 2021Narrow-Bandgap InGaAsP Solar Cell with TiO2 Carrier-Selective Contactcitations
- 2020Forward and Backward Switching of Nonlinear Unidirectional Emission from GaAs Nanoantennascitations
- 2019Second-harmonic generation in (111) gallium arsenide nanoantennas
- 2019 Ultrathin Ta 2 O 5 electron-selective contacts for high efficiency InP solar cells citations
- 2019InGaAsP as a Promising Narrow Band Gap Semiconductor for Photoelectrochemical Water Splittingcitations
- 2019Ultrathin Ta2O5 electron-selective contacts for high efficiency InP solar cellscitations
- 2018Indium phosphide based solar cell using ultra-thin ZnO as an electron selective layercitations
- 2017Improved photoelectrochemical performance of GaN nanopillar photoanodescitations
- 2017Void evolution and porosity under arsenic ion irradiation in GaAs1-xSbx alloyscitations
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article
Far-Field Polarization Engineering from Nonlinear Nanoresonators
Abstract
<p>Nanoresonators fabricated from low-loss dielectrics with second-order nonlinearity have emerged as a widespread platform for nonlinear frequency conversion at the nanoscale. However, a persisting challenge in this research is the generated complex far-field polarization state of the upconverted light, which is a limiting factor in many applications. It will be highly desirable to generate uniform far-field polarization states across all propagation directions, to control the polarization truly along the optical axis and to simultaneously be able to tune the polarization along the entire circumference of the Poincaré sphere by solely modifying the excitation polarization. Here, a nonlinear nanoresonator combining all these properties is theoretically proposed and experimentally demonstrated. At first, an analytical model connecting the induced multipolar content of a nanoresonator with a desired far-field polarization is derived. Based on this, a nonlinear dielectric nanoresonator is designed to enable sum-frequency generation (SFG) with highly pure and tuneable far-field polarization states. In the experiment, the nanoresonators fabricated from the III-V semiconductor gallium arsenide in (110)-orientation are excited in an SFG scheme with individually controllable excitation beams. The generation of highly uniform and tuneable far-field polarization states is demonstrated by combining back-focal plane measurements with Stokes polarimetry.</p>