Abstract

The low-temperature heat treatment of K8 glass is carried out at temperatures of 350–500°C in alkaline melts of NaNO₃ and CsNO₃ salts in the field of gamma radiation from the ⁶⁰Co source at the dose rate of 3000 R/s and also outside the field. Under the influence of thermoradiation treatment due to the \({\text{Na}}_{{{\text{glass}}}}^{ + }\) ↔ \({\text{Cs}}_{{{\text{melt}}}}^{ + }\) ion-exchange diffusion, mechanical compressive stresses are created in the surface layer of the glass, which lead to the formation of a waveguide layer of the given thickness and an increase in the refractive index (RI) increment, the number of waveguide modes, and the depth of the waveguide layer.

中文翻译：

---

热辐射离子交换在K8玻璃表面形成波导层

摘要

K8玻璃的低温热处理是在NaNO ₃和CsNO _{3盐的碱性熔体中，在}⁶⁰ Co源的伽玛辐射场中，在350-500°C的温度下进行，剂量率为3000 R/s以及场外。在热辐射处理的影响下，由于\({\text{Na}}_{{{\text{glass}}}}^{ + }\) ↔ \({\text{Cs}}_{{{ \text{melt}}}}^{ + }\)离子交换扩散，在玻璃表面层产生机械压应力，导致形成给定厚度的波导层，并增加折射率 (RI) 增量、波导模式数量和波导层深度。