Abstract

Chalcogenide glass has become one of the essential IR lens materials in passively athermalized long-wave IR devices. However, that there is no multispectral chalcogenide glass capable of large-size fabrication raises challenges to the development and popularization of multispectral imaging systems combining visible, near-IR, and mid-IR. In this work, we developed a novel chalcogenide glass capable of a record-big (Ø120 mm) fabrication through the compositional optimization of GeS₂–Ga₂S₃–CsCl glass with introduction of Sb₂S₃. Its transmission window is characterized as ranging from 0.51 to 11.2 µm, which means it could be employed as a multispectral lens transmitting visible and IR signals in a co-aperture IR optical system. In addition, a method of three-stage thermal analysis is proposed to evaluate the glass-forming ability of chalcogenide glass through simulating the melt-quenching process of chalcogenide melt in a vacuum-sealed silica ampoule. This work not only shows an innovative multispectral chalcogenide glass with promising applications but also introduces a simple and convenient technique for screening chalcogenide glass with ultrahigh glass-forming ability capable of large-size fabrication.

© 2023 Optica Publishing Group

Multi-octave mid-infrared supercontinuum generation in tapered chalcogenide-glass rods

Esteban Serrano, Damien Bailleul, Frédéric Désévédavy, Grégory Gadret, Pierre Mathey, Pierre Béjot, Asuka Nakatani, Tonglei Cheng, Yasutake Ohishi, Bertrand Kibler, and Frédéric Smektala
Opt. Lett. 48(21) 5479-5482 (2023)

Optical fabrication of microlenses in chalcogenide glasses

H. Hisakuni and K. Tanaka
Opt. Lett. 20(9) 958-960 (1995)

Enhanced 2-µm and upconversion luminescence properties regulated by network structure in Ho³⁺/Yb³⁺ co-doped germanate laser glasses

Guowu Tang, Dongliang Yang, Wenhua Huang, Xiangyang Song, Fangteng Zhang, Qi Qian, Weiren Zhao, and Zhongmin Yang
Opt. Lett. 48(3) 534-537 (2023)

Fabrication of ultrafast laser written low-loss waveguides in flexible As₂S₃ chalcogenide glass tape

Jerome Lapointe, Yannick Ledemi, Sébastien Loranger, Victor Lambin Iezzi, Elton Soares de Lima Filho, Francois Parent, Steeve Morency, Younes Messaddeq, and Raman Kashyap
Opt. Lett. 41(2) 203-206 (2016)

Preparation of Ge–Sb–Se glass fibers with excellent bending properties by the pulsated orifice ejection method

Wenlong Xu, Yongchang Guo, Can Li, Jie Fu, Zhibiao Ma, Zhifan Hao, Hui Wang, Haizheng Tao, and Jianqiang Li
Opt. Lett. 48(21) 5471-5474 (2023)