Investigation of Nd3+ ions spectroscopic and laser properties in SrF2 fluoride single crystal
Investigation of Nd3+ ions spectroscopic and laser properties in SrF2 fluoride single crystal
复制标题
DOI：
10.1016/j.optmat.2011.11.010
复制
发表时间：
2012-03
影响因子：
3.9
通讯作者：
O. Alimov;T. Basiev;M. Doroshenko;P. Fedorov;V. Konyushkin;A. Nakladov;V. Osiko
中科院分区：
文献类型：
--
作者：
O. Alimov;T. Basiev;M. Doroshenko;P. Fedorov;V. Konyushkin;A. Nakladov;V. Osiko
研究了钕离子浓度为0.5at时SrF2:Nd3+晶体的激光性能。%在二极管激光泵浦下进行了研究。通过对激光二极管泵浦波长进行温度调谐，得到了两条中心在1037nm和1044nm左右的不同光心振荡谱线。激光斜率效率最高可达37%。研究了不同Nd3+浓度对不同Nd3+光中心和簇状Nd3+光中心的吸收和荧光光谱的影响。测量了高对称l中心的寿命，发现在室温下，高对称l中心的寿命比聚集m中心的寿命长两个数量级。测量了不同温度下m中心的寿命，测定了nd对中离子-离子相互作用的微参数。
The laser properties of SrF2:Nd3+crystal with neodymium ions concentration of 0.5at.% were investigated under diode laser pumping. Using temperature tuning of laser diode pumping wavelength two different lines centered at about 1037nm and 1044nm attributed to oscillation of different optical centers were obtained. The maximum lasing slope efficiency of 37% was obtained. The absorption and fluorescence spectra of different individual and clustered Nd3+ions optical centers were observed depending on Nd3+concentration. The lifetimes of the high symmetry L-centers were measured and found to be two orders of magnitude longer than that for clustered M-centers at room temperature. The lifetimes of M-centers at different temperatures were measured and microparameter of ion–ion interaction in Nd-pairs was determined.