Breaking refractive index records with layered van der Waals GeS<sub>2</sub> for blue and near-ultraviolet photonics

Pavel Shafirin; Mozakkar Hossain; Artur Davoyan

doi:10.1038/s41377-025-02070-y

Your Location：

Home >

Browse articles >

Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics

News & Views

- Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics
- Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics
- Light: Science & Applications 2026年15卷第1期页码：11-13
- Affiliations：
  
  Department of Mechanical and Aerospace Engineering, University of California, Los Angeles 90095 CA, USA
- Author bio：
  
  Artur Davoyan (davoyan@seas.ucla.edu)
- Funds：
- DOI：10.1038/s41377-025-02070-y
  中图分类号：
- 网络出版：2026-01-02，
  
  纸质出版：2026-01-31
- Accepted：
Scan QR Code
Pavel Shafirin, Mozakkar Hossain, Artur Davoyan. Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics[J]. Light: Science & Applications, 2026,15(1):11-13.

Shafirin, P., Hossain, M. & Davoyan, A. Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics. Light: Science & Applications, 15, 11-13 (2026).
Pavel Shafirin, Mozakkar Hossain, Artur Davoyan. Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics[J]. Light: Science & Applications, 2026,15(1):11-13. DOI： 10.1038/s41377-025-02070-y.

Shafirin, P., Hossain, M. & Davoyan, A. Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics. Light: Science & Applications, 15, 11-13 (2026). DOI： 10.1038/s41377-025-02070-y.

摘要

Abstract

GeS

a layered a wide bandgap van der Waals material

is now found to exhibit record-high refractive index and extreme optical anisotropy across blue and near-ultraviolet bands

promising bright future for short-wavelength photonics.

关键词

Keywords

references

Ravindra, N. M., Ganapathy, P. & Choi, J. Energy gap–refractive index relations in semiconductors-an overview. Infrared Phys. Technol. 50 , 21–29 (2007)..

Khurgin, J. B. Expanding the photonic palette: exploring high index materials. ACS Photonics 9 , 743–751 (2022)..

Ling, H. N., Li, R. J. & Davoyan, A. R. All van der Waals integrated nanophotonics with bulk transition metal dichalcogenides. ACS Photonics 8 , 721–730 (2021)..

Munkhbat, B. et al. Optical constants of several multilayer transition metal dichalcogenides measured by spectroscopic ellipsometry in the 300–1700 nm range: high index, anisotropy, and hyperbolicity. ACS Photonics 9 , 2398–2407 (2022)..

Liu, C. H. et al. Ultrathin van der Waals metalenses. Nano Lett. 18 , 6961–6966 (2018)..

Xu, X. Y. et al. Towards compact phase-matched and waveguided nonlinear optics in atomically layered semiconductors. Nat. Photonics 16 , 698–706 (2022)..

Ling, H. N. et al. Nonlinear van der Waals metasurfaces with resonantly enhanced light generation. Nano Lett. 25 , 9229–9236 (2025)..

Ling, H. N. et al. Deeply subwavelength integrated excitonic van der Waals nanophotonics. Optica 10 , 1345–1352 (2023)..

Munkhbat, B. et al. Nanostructured transition metal dichalcogenide multilayers for advanced nanophotonics. Laser Photonics Rev. 17 , 2200057 (2023)..

Slavich, A. S. et al. Germanium disulfide as an alternative high refractive index and transparent material for UV-visible nanophotonics. Light Sci. Appl. 14 , 213 (2025)..

Xiong, J. H. et al. Augmented reality and virtual reality displays: emerging technologies and future perspectives. Light Sci. Appl. 10 , 216 (2021)..

Zhang, C. et al. Low-loss metasurface optics down to the deep ultraviolet region. Light Sci. Appl. 9 , 55 (2020)..

浏览量

Downloads

CSCD

文章被引用时，请邮件提醒。

Submit

工具集

关联资源

暂无数据

Breaking refractive index records with layered van der Waals GeS2 for blue and near-ultraviolet photonics

Breaking refractive index records with layered van der Waals GeS2 for blue and near-ultraviolet photonics

DOI：10.1038/s41377-025-02070-y

摘要

Abstract

关键词

Keywords

references

Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics

Breaking refractive index records with layered van der Waals GeS₂ for blue and near-ultraviolet photonics