Physics

Twist-tunable polaritonic nanoresonators in a van der Waals crystal

O. G. Matveeva, A. I. F. Tresguerres-mata, et al.

Discover groundbreaking mid-infrared nanoresonators utilizing phonon polaritons in α-MoO3 van der Waals crystals. These innovative resonators achieve remarkable low losses and allow for twist-tunable spectral responses, empowering control over their resonances. This exciting research was conducted by a team of authors including O. G. Matveeva and A. I. F. Tresguerres-Mata.

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Abstract

This paper introduces a new class of mid-infrared nanoresonators based on phonon polaritons (PhPs) in α-MoO3 van der Waals crystals. These resonators exhibit low losses (quality factors up to 200) and a unique twist-tunable spectral response, allowing control of their resonances (up to 32 cm⁻¹) by simply rotating the crystal. This tunability, achieved by placing an α-MoO3 slab on a metallic ribbon array, opens avenues for tunable and low-loss infrared nanotechnologies.

Publisher

npj 2D Materials and Applications

Published On

Apr 10, 2023

Authors

O. G. Matveeva, A. I. F. Tresguerres-Mata, R. V. Kirtaev, K. V. Voronin, J. Taboada-Gutiérrez, C. Lanza, J. Duan, J. Martín-Sánchez, V. S. Volkov, P. Alonso-González, A. Y. Nikitin

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