Department of Physics, Sri Venkateswara Degree College, Kadapa-516003, India.
Luminescence. 2012 Sep-Oct;27(5):334-40. doi: 10.1002/bio.1353. Epub 2011 Sep 19.
This article reports on the optical properties of Er3+ ions doped CdO-Bi2O3-B2O3 (CdBiB) glasses. The materials were characterized by optical absorption and emission spectra. By using Judd-Ofelt theory, the intensity parameters Ω(λ) (λ = 2, 4, 6) and also oscillatory strengths were calculated from the absorption spectra. The results were used to compute the radiative properties of Er3+ :CdBiB glasses. The concentration quenching and energy transfer from Yb3+ -Er3+ were explained. The stimulated emission cross-section, full width at half maximum (FWHM) and FWHM × σpE values are also calculated for all the Er3+ CdBiB glasses.
本文报道了掺铒的 CdO-Bi2O3-B2O3(CdBiB)玻璃的光学性质。通过光学吸收和发射光谱对材料进行了表征。利用 Judd-Ofelt 理论,从吸收光谱中计算出强度参数 Ω(λ)(λ=2、4、6)和振子强度。结果用于计算 Er3+:CdBiB 玻璃的辐射性质。解释了 Yb3+-Er3+的浓度猝灭和能量转移。还计算了所有 Er3+CdBiB 玻璃的受激发射截面、半峰全宽(FWHM)和 FWHM×σpE 值。