Design and magneto‐optical characteristics of Ge–Sb–S–PbI2 chalcogenide glasses with a high Verdet constant. Issue 11 (27th May 2019)

• Record Type: Journal Article
• Authors: Xu, Yantao; Guo, Haitao; Liu, Xiaogang; Cui, Jian; Xiao, Xusheng; Cui, Xiaoxia; Guo, Junjiang; She, Jiangbo; Lu, Min; Peng, Bo
• Is Part Of: Journal of the American Ceramic Society. Volume 102:Issue 11(2019)
• Page Start: 6787
• Page End: 6793
• Publication Date: 2019-05-27
• Subjects: chalcogenides -- magneto optics -- optical materials/properties -- Raman spectroscopy; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.16551
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract: To develop high‐performance magneto‐optical chalcogenide glasses and clarify the mechanisms of the Verdet constant, a series of GeS2 –Sb2 S3 –PbI2 chalcogenide glasses were designed and fabricated, and their Faraday effects were investigated at a wavelength of 980 nm. A new parameter, that is, average polarizability, was proposed, and the results show that the Verdet constant has a good linear relationship with average polarizability, meaning that the Verdet constant of a chalcogenide glass can be directly estimated by its chemical constituents. The Verdet constant is as large as 0.200 min G −1 cm −1 at 980 nm for 22.5GeS2 –67.5Sb2 S3 –10PbI2 composition glass, which is the largest value reported thus far for sulfide glasses; this glass also possesses good thermal and optical properties and therefore might be an attractive candidate for mid‐infrared magneto‐optical device applications.