Evidence of energy transfer among Nd ions in Nd:YAG driven by a mixture of exchange and multipolar interactions

被引：11

作者：

Diaz-Torres, LA

Barbosa-Garcia, O

Hernandez, JM

Pinto-Robledo, V

Sumida, D

机构：

[1] Ctr Invest Opt, Leon 37000, Gto, Mexico

[2] Inst Tecnol Leon, Leon 37000, Gto, Mexico

[3] Univ Nacl Autonoma Mexico, Inst Fis, Mexico City 01000, DF, Mexico

[4] Hughes Res Labs, Malibu, CA 90265 USA

来源：

OPTICAL MATERIALS | 1998年 / 10卷 / 04期

关键词：

energy transfer; neodymium YAG crystals; rare-earth laser materials;

D O I：

10.1016/S0925-3467(98)00013-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The non-radiative energy transfer between Nd ions in Nd:YAG is investigated through high time-resolution fluorescence measurements of the F-4(3/2) level of Nd. Our experimental data suggests that a strong short-range interaction, i.e., exchange interaction, contributes to the energy transfer process between Nd ions at early times. In addition to it, our Monte Carlo simulations predict a multipolar mixture of interactions, that is, dipole-dipole, dipole-quadrupole, quadrupole-quadrupole and exchange interactions. This result is compared with a similar measurement and analysis for the Nd, Er, Cr:YAG luminescent system previously reported. (C) 1998 Published by Elsevier Science B.V. All rights reserved.

引用

页码：319 / 326

页数：8