Premium
Red Color GeSe 2 ‐Based Chalcohalide Glasses for Infrared Optics
Author(s) -
Yang Zhiyong,
Luo Lan,
Chen Wei
Publication year - 2006
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2006.01006.x
Subject(s) - infrared , materials science , absorption edge , thermal stability , optics , absorption (acoustics) , wavelength , optical materials , glass transition , thermal , infrared spectroscopy , pigment , optoelectronics , infrared window , chemistry , composite material , band gap , physics , thermodynamics , organic chemistry , polymer
GeSe 2 –Ga 2 Se 3 –CsI chalcohalide glasses are synthesized, and their optical properties and thermo‐mechanical properties are studied. A typical characteristic of the glasses is their excellent transparency in the red‐light region in addition to the 8–14 μm atmospheric window, which is of vital importance to the quality control of infrared systems. The short‐wavelength absorption edge λ s of the glass system has a distinct blue shift with increasing CsI content, and the physicochemical interpretations are suggested and formulated. These glasses present a glass transition temperature ( T g ) around 300°C and good thermal stability. Consequently, they can be promising candidate materials for infrared optics, although their hardness is relatively weak.