Ermolaev Georgy A, Yakubovsky Dmitry I, El-Sayed Marwa A, Tatmyshevskiy Mikhail K, Mazitov Arslan B, Popkova Anna A, Antropov Ilya M, Bessonov Vladimir O, Slavich Aleksandr S, Tselikov Gleb I, Kruglov Ivan A, Novikov Sergey M, Vyshnevyy Andrey A, Fedyanin Andrey A, Arsenin Aleksey V, Volkov Valentyn S
Center for Photonics and 2D Materials, Moscow Institute of Physics and Technology, 9 Institutsky Lane, 141700 Dolgoprudny, Russia.
Department of Physics, Faculty of Science, Menoufia University, Shebin El-Koom 32511, Egypt.
Nanomaterials (Basel). 2021 Dec 31;12(1):141. doi: 10.3390/nano12010141.
SnS and SnSe have recently been shown to have a wide range of applications in photonic and optoelectronic devices. However, because of incomplete knowledge about their optical characteristics, the use of SnS and SnSe in optical engineering remains challenging. Here, we addressed this problem by establishing SnS and SnSe linear and nonlinear optical properties in the broad (300-3300 nm) spectral range. Coupled with the first-principle calculations, our experimental study unveiled the full dielectric tensor of SnS and SnSe. Furthermore, we established that SnS is a promising material for visible high refractive index nanophotonics. Meanwhile, SnSe demonstrates a stronger nonlinear response compared with SnS. Our results create a solid ground for current and next-generation SnS- and SnSe-based devices.
最近研究表明，硫化锡（SnS）和硒化锡（SnSe）在光子和光电器件中具有广泛应用。然而，由于对其光学特性了解不全面，在光学工程中使用SnS和SnSe仍具有挑战性。在此，我们通过在宽光谱范围（300 - 3300 nm）内确定SnS和SnSe的线性及非线性光学特性来解决这一问题。结合第一性原理计算，我们的实验研究揭示了SnS和SnSe的完整介电张量。此外，我们证实SnS是用于可见高折射率纳米光子学的一种有前景的材料。同时，与SnS相比，SnSe表现出更强的非线性响应。我们的研究结果为当前及下一代基于SnS和SnSe的器件奠定了坚实基础。
