Effect of concentration on its optical absorption properties of Pr3+-doped potassium borate glass

被引：0
|
作者：
Ratnakaram, YC [1 ]
Altaf, A [1 ]
Prasad, KR [1 ]
机构：
[1] Sri Venkateswara Univ, Post Grad Ctr, Dept Phys, Kavali 524201, Andhra Pradesh, India
来源：
INDIAN JOURNAL OF PHYSICS AND PROCEEDINGS OF THE INDIAN ASSOCIATION FOR THE CULTIVATION OF SCIENCE-PART A | 2004年 / 78A卷 / 03期
关键词：
optical band gaps; radiative lifetimes; branching ratio;
D O I：
暂无
中图分类号：
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号：
07 ; 0710 ; 09 ;
摘要：
The optical properties of Pr3+ doped potassium borate glass in different Pr3+ concentrations were studied. From the optical absorption spectra, optical band gaps (E-opt) and various spectroscopic parameters (E-1, E-2, E-3 and xi(4f)) are determined. Using Judd-Ofelt intensity parameters (Omega(2), Omega(4), and Omega(6)), radiative lifetimes (tau(R)), branching ratios (beta) and integrated absorption cross sections (Sigma) have been calculated for certain excited states of Pr3+ in potassium borate glass for all the concentrations The radiative lifetimes for all the excited states are minimum when the concentration is high. Few of the transitions have been selected for lasing, action from the magnitudes of branching ratios and integrated absorption cross sections.
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收藏
页码：315 / 319
页数：5
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