| Title: |
Double-resonant second-harmonic generation in MoS2 nanoantennas |
| Authors: |
Antropov, Ilya M.; Popkova, Anna A.; Tselikov, Gleb I.; Ermolaev, Georgy A.; Ozerov, Igor; Bedu, F.; Kirtaev, Roman V.; Novikov, Sergey M.; Evlyukhin, Andrey B.; Arsenin, Aleksey V.; Bessonov, Vladimir O.; Volkov, Valentyn S.; Fedyanin, Andrey A. |
| Contributors: |
Lomonosov Moscow State University = Université d'État Lomonossov de Moscou (MSU); Moscow Institute of Physics and Technology Moscow (MIPT); Centre Interdisciplinaire de Nanoscience de Marseille (CINaM); Aix Marseille Université (AMU)-Centre National de la Recherche Scientifique (CNRS); Institute of Quantum Optics, Liebniz University Hannover, 30167 Hannover, Germany; GrapheneTek, Skolkovo Innovation Center, Moscow, 143026, Russian Federation |
| Source: |
https://hal.science/hal-03225067 ; 2021. |
| Publisher Information: |
CCSD |
| Publication Year: |
2021 |
| Collection: |
Aix-Marseille Université: HAL |
| Subject Terms: |
[PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics]; [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] |
| Description: |
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. |
| Document Type: |
report |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/2105.04985; ARXIV: 2105.04985 |
| Availability: |
https://hal.science/hal-03225067 |
| Accession Number: |
edsbas.DA708F46 |
| Database: |
BASE |