Theoretical Assessment of Nd:YAG Ceramic Laser Performance by Microstructural and Optical Modeling

被引:13
作者
Aschauer, Ulrich [1 ]
Bowen, Paul [1 ]
机构
[1] Ecole Polytech Fed Lausanne, LTP, CH-1015 Lausanne, Switzerland
关键词
Neodymium lasers - Grain size and shape - Yttrium aluminum garnet - Ceramic materials - Luminescence - Sintering - Economic and social effects;
D O I
10.1111/j.1551-2916.2009.03475.x
中图分类号
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
An approach combining microstructural and optical modeling based on atomistic simulation results is proposed, in order to assess the performance of Nd:YAG laser ceramics resulting from luminescence and transparency changes as a function of grain size and dopant concentration. It is found that while small grain sizes enhance transparency, luminescence is reduced, resulting in a trade-off to achieve optimum laser performance. These effects are linked to ceramic production by considering different sintering routes. This improved insight into the microstructural effects of Nd:YAG ceramics on laser performance will allow a more targeted experimental optimization of this new class of laser materials.
引用
收藏
页码:814 / 820
页数:7
相关论文
共 29 条
[1]   Transparent alumina: A light-scattering model [J].
Apetz, R ;
van Bruggen, MPB .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2003, 86 (03) :480-486
[2]   Growth modification of hematite by phosphonate additives [J].
Aschauer, U. ;
Jones, F. ;
R. Richmond, W. ;
Bowen, P. ;
Rohl, A. L. ;
Parkinson, G. M. ;
Hofman, H. .
JOURNAL OF CRYSTAL GROWTH, 2008, 310 (03) :688-698
[3]   Surface and mirror twin grain boundary segregation in Nd:YAG:: An atomistic simulation study [J].
Aschauer, Ulrich ;
Bowen, Paul ;
Parker, Stephen C. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2008, 91 (08) :2698-2705
[4]   Atomistic modeling study of surface segregation in Nd:YAG [J].
Aschauer, Ulrich ;
Bowen, Paul ;
Parker, Stephen C. .
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2006, 89 (12) :3812-3816
[5]   Colloidal processing and sintering of nanosized transition aluminas [J].
Bowen, P ;
Carry, C ;
Luxembourg, D ;
Hofmann, H .
POWDER TECHNOLOGY, 2005, 157 (1-3) :100-107
[6]   THEORY OF THE DIELECTRIC CONSTANTS OF ALKALI HALIDE CRYSTALS [J].
DICK, BG ;
OVERHAUSER, AW .
PHYSICAL REVIEW, 1958, 112 (01) :90-103
[7]   Temperature-dependent stimulated emission cross section and concentration quenching in highly doped Nd3+:YAG crystals [J].
Dong, J ;
Rapaport, A ;
Bass, M ;
Szipocs, F ;
Ueda, K .
PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2005, 202 (13) :2565-2573
[8]   The General Utility Lattice Program (GULP) [J].
Gale, JD ;
Rohl, AL .
MOLECULAR SIMULATION, 2003, 29 (05) :291-341
[9]   GULP: A computer program for the symmetry-adapted simulation of solids [J].
Gale, JD .
JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1997, 93 (04) :629-637
[10]   Luminescence properties of Nd:YAG nanoceramics prepared by low temperature high pressure sintering method [J].
Hreniak, D. ;
Fedyk, R. ;
Bednarkiewicz, A. ;
Strek, W. ;
Lojkowski, W. .
OPTICAL MATERIALS, 2007, 29 (10) :1244-1251