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BULLETIN OF THE CHINESE CERAMIC SOCIETY ›› 2025, Vol. 44 ›› Issue (8): 3022-3030.DOI: 10.16552/j.cnki.issn1001-1625.2025.0126

• Glass • Previous Articles     Next Articles

Influences of Composition and Light Source Wavelength on Stress-Optic Coefficient of Alkali-Aluminosilicate Glass

TIAN Haonan1, ZHOU Zeyun2, ZHANG Xingzhi2, ZHAO Zhiyong2   

  1. 1. School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan 430074, China;
    2. College of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, China
  • Received:2025-02-08 Revised:2025-02-26 Online:2025-08-15 Published:2025-08-22

Abstract: Alkali-aluminosilicate glass (R2O-RO-Al2O3-SiO2) has emerged as an important new type of glass, finding applications in screen protection, high-speed rail, aviation and photovoltaic. This study investigated stress-optical coefficient of alkali-aluminosilicate glass by designing an optical path system and constructing a measurement device based on the tensile measurement method. Glass fibers with diameters of 0.70 mm to 0.80 mm were used as samples. The influences of glass composition (R2O, RO, Al2O3, SiO2) and light source wavelengths (640, 587, 518 nm) on stress-optical coefficient were investigated. The main findings indicate that the stress-optical coefficient is determined by composition of each oxide and stress-optical coefficient factors, exhibiting additivity. The stress-optical coefficient decreases nonlinearly with increasing light source wavelength. Additionally, the stress-optical coefficient of the glass is proportional to the cube of the refractive index n3 and Poisson ratio μ, while being inversely proportional to the elastic modulus E. The oxide stress-optical coefficient factors obtained in this study provide technical support and predictive guidance for the design of stress-optical coefficients in alkali-aluminosilicate glass.

Key words: alkali-aluminosilicate glass, stress-optical coefficient, glass composition, light source wavelength, refractive index, Poisson ratio

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