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Ozerov, Igor
Centre Interdisciplinaire de Nanoscience de Marseille
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (9/9 displayed)
- 2023Uniform Huygens Metasurfaces with Postfabrication Phase Pattern Recording Functionalitycitations
- 2021Double-resonant second-harmonic generation in MoS2 nanoantennas
- 2021Double-resonant second-harmonic generation in MoS2 nanoantennas
- 2018Strong Nonlinear Optical Response in the Visible Spectral Range with Epsilon‐Near‐Zero Organic Thin Filmscitations
- 2017Nanofabrication of silicon Mie resonators and all-dielectric colored metasurfaces
- 2015Nanofabrication of optical structures (filters, resonators and sensors)
- 2014A graphene electron lens
- 2004ENHANCEMENT OF EXCITON EMISSION FROM ZnO NANOCRYSTALLINE FILMS BY PULSED LASER ANNEALING
- 2002Synthesis and Laser Processing of ZnO Nanocrystalline Thin Films
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document
Double-resonant second-harmonic generation in MoS2 nanoantennas
Abstract
Molybdenum disulfide (MoS2) is a layered material of transition metal dichalcogenides (TMDCs) with a high refractive index in the visible and infrared spectral range. Therefore, by constructing MoS2 into dielectric nanoresonators, one can generate highly confined electromagnetic Mie-type modes. In this work, we applied lithography and etching techniques to single crystal MoS2 flakes to fabricate nanodisks that support magnetic dipole Mie resonances in near infrared spectral range. The nanodisks were studied by second-harmonic generation (SHG) rotational anisotropy revealing the retention of crystallinity and the orientation of the crystallographic axes of the single disk structure after fabrication. Magnetic dipole resonances manifest as resonant intensity enhancement in SHG spectra. Tuning Mie resonances by selecting the geometrical size of MoS2 nanodisks, we demonstrated strongly enhanced SHG due to the overlap of the optical resonance at the fundamental wavelength with the C-exciton resonance at the second-harmonic wavelength.