Optical spectroscopy of Nd3+ in LiLuF4 single crystals
Authors:
- Chengchun ZhaoCZChengchun Zhao
- Lianhan ZhangLZLianhan Zhang
- Yin HangYHYin Hang
- Xiaoming HeXHXiaoming He
- Jigang YinJYJigang Yin
- Pengchao HuPHPengchao Hu
- Guangzhu ChenGCGuangzhu Chen
- Mingzhu HeMHMingzhu He
- Huang HuangHHHuang Huang
- Yongyuan ZhuYZYongyuan Zhu
- 25 November 2010
- journal article
- Published by IOP Publishing in Journal of Physics D: Applied Physics
- Vol. 43 (49)
Abstract
The polarized absorption spectra, polarized fluorescence spectra and fluorescence decay curve of Nd3+ : LiLuF4 crystals are measured at room temperature. The peak absorption cross-sections are 6.944×10−20 cm2 and 1.664 × 10−20 cm2 at around 795 nm with full-width at half-maximum of 3.4 nm and 3.2 nm for π-polarization and σ-polarization, respectively. Based on Judd–Ofelt theory, the spectral parameters of Nd3+ in LiLuF4 crystals are investigated. The emission probabilities, branching ratio and radiative lifetime for the transitions from 4F3/2 are calculated. The radiative lifetime, fluorescence lifetime and quantum efficiency are 536 µs, 489 µs and 91%, respectively. Its spectroscopic parameters are also compared with those of some other important Nd3+-doped laser crystals.Keywords
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