Predict optical properties of Dy3+ ions doped double potassium gadolinium fluoride crystal from absorption spectra

• Main Authors: Phan, Van Do, Vu, Phi Tuyen, N. M., Khaidukov, Nguyen, Trong Thanh
• Format: Article
• Language: English
• Published: H. : ĐHQGHN 2017
• Subjects: K2GdF5 single crystal; J-O theory
• Online Access: http://repository.vnu.edu.vn/handle/VNU_123/56330
• Institution: Vietnam National University, Hanoi

Double potassium gadolinium fluoride crystal doped with 5.0 mol % of Dy3+ ions (K2GdF5:Dy3+) was synthesized under hydrothermal condition. The absorption, luminescence spectra and lifetime of K2GdF5:Dy3+ sample were measured at room temperature. Judd – Ofelt (JO) theory is used to study the spectral properties and to calculate the radiative transition probabilities. The prediced branching ratios (βR), radiative lifetime (ιR), integrated emission cross – section (Σif) and stimulated emission cross – sections (σ(λp)) of the 4F9/2 excited level are reported.[u1]