Two-dimensional (2D) crystals are a new class of materials with a great impact on science and technology. They promise plenty of possible applications and challenges the scientists for a deep comprehension of their physical properties.
We investigate the optical response of 2D crystals with the final goal of designing innovative optical coatings. In particular, their out-of-plane optical constants proved to be elusive. Recently our laboratory successfully observed them1.
We are running2 a systematic characterization of the susceptibility and conductivity tensors of 2D crystals in the visible spectrum. We will produce a large datasheet of optical constants foreseeing new possible coatings that can be useful in many applications like sustainable constructions (for instance windows and glass facades) up to emerging technologies such as optical sensing with squeezed light.
References:
1] Z. Xu, etl al. Commun. Phys. 4 (2021) 215.
[2] Y. He, et al. Phys. Rev. A (accepted)