Anisotropic van der Waals Crystal with High Refractive Index and Transparency for UV-Visible Range Applications

作     者：Slavich, Aleksandr S. Ermolaev, Georgy A. Zavidovskiy, Ilya A. Grudinin, Dmitriy V. Kravtsov, Konstantin V. Tatmyshevskiy, Mikhail K. Mironov, Mikhail S. Toksumakov, Adilet N. Tselikov, Gleb I. Fradkin, Ilia M. Voronin, Kirill V. Povolotskiy, Maksim R. Matveeva, Olga G. Syuy, Alexander V. Yakubovsky, Dmitry I. Tsymbarenko, Dmitry M. Kruglov, Ivan Ghazaryan, Davit A. Novikov, Sergey M. Vyshnevyy, Andrey A. Arsenin, Aleksey V. Volkov, Valentyn S. Novoselov, Kostya S. 

作者机构：Emerging Technologies Research Center XPANCEO Internet City Emmay Tower Dubai United Arab Emirates Moscow Center for Advanced Studies Kulakova str. 20 Moscow123592 Russia  Donostia/San Sebastián20018 Spain Department of Chemistry Lomonosov Moscow State University Moscow119991 Russia Laboratory of Advanced Functional Materials Yerevan State University Yerevan0025 Armenia  University of Manchester ManchesterM13 9PL United Kingdom Department of Materials Science and Engineering National University of Singapore Singapore03-09 EA Singapore Institute for Functional Intelligent Materials National University of Singapore Singapore117544 Singapore 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Van der Waals forces 

摘      要：Thanks to their record high refractive index and giant optical anisotropy, van der Waals (vdW) materials have accelerated the development of nanophotonics. However, traditional high refractive index materials, such as titanium dioxide (TiO2), still dominate in the most important visible range. This is due to the current lack of transparent vdW materials across the entire visible spectrum. In this context, we propose that germanium disulfide (GeS2) could offer a significant breakthrough. With its high refractive index, negligible losses, and biaxial optical anisotropy across the whole visible range, GeS2 has the potential to complement TiO2 and close the application gap of vdW materials in the visible spectrum. The addition of GeS2 could have a profound impact on the design of van der Waals nanophotonic circuits for any operation wavelength from ultraviolet to infrared, emphasizing the significance of the potential impact of GeS2 on the field of nanophotonics. © 2024, CC BY.