1 Double-resonant second-harmonic generation in MoS 2 nanoantennas Ilya M. Antropov, † , ⊥ Anna A. Popkova, † , ⊥ Gleb I. Tselikov, ‡ Georgy A. Ermolaev, ‡ Igor Ozerov, ¶ Frédéric Bedu, ¶ Roman V. Kirtaev, ‡ Sergey M. Novikov, ‡ Andrey B. Evlyukhin, ‡ , § Aleksey V. Arsenin, ‡ , k Vladimir O. Bessonov, ∗ , † Valentyn S. Volkov, ‡ , k and Andrey A. Fedyanin † †Faculty of Physics, Lomonosov Moscow State University, Moscow, 119991, Russia ‡Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutsky Lane, Dolgoprudny, 141700, Russian Federation ¶CNRS, Aix-Marseille Univ, CINAM, 13288 Marseille, France §Institute of Quantum Optics, Liebniz University Hannover, 30167 Hannover, Germany kGrapheneTek, Skolkovo Innovation Center, Moscow, 143026, Russian Federation ⊥Contributed equally to this work E-mail: bessonov@nanolab.phys.msu.ru 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