Spectroscopic and two-photon upconversion studies of Ho3+-doped Lu3Al5O12

被引：52

作者：

Patel, DN ^{[1
]}

Reddy, BR

Nash-Stevenson, SK

机构：

[1] Alabama A&M Univ, Dept Phys, Normal, AL 35762 USA

[2] NASA, George C Marshall Space Flight Ctr, Huntsville, AL 35812 USA

来源：

OPTICAL MATERIALS | 1998年 / 10卷 / 03期

基金：

美国国家科学基金会; 美国国家航空航天局;

关键词：

energy upconversion; holmium; Lu3Al5O12; two-photon excitation; site-selection; fluorescence;

D O I：

10.1016/S0925-3467(97)00177-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A detailed spectroscopic investigation of Lu3Al5O12 doped with Ho3+ has been performed. Judd-Ofelt intensity parameters are estimated as Omega(2) = 0.172 +/- 0.10 x 10(-20) cm(2), Omega(4) = 2.08 +/- 0.18 x 10(-20) cm(2), and Omega(6) = 1.92 +/- 0.11 x 10(-20) cm(2). Transition probabilities and lifetimes were also estimated. Experimentally, we found that Ho3+ ion occupies more than one type of site in the lattice. Energy upconversion studies were performed under different laser excitation conditions. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：225 / 234

页数：10

共 19 条

[1] DIODE-PUMPED, ROOM-TEMPERATURE TM-LUAG LASER [J].