AUGER UP-CONVERSION LOSSES IN ND-DOPED LASER GLASSES

被引:57
作者
PAYNE, SA
WILKE, GD
SMITH, LK
KRUPKE, WF
机构
[1] University of California, Lawrence Livermore National Laboratory, Livermore, CA 94550
关键词
D O I
10.1016/0030-4018(94)90463-4
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We have measured the Auger upconversion constant, gamma, of Nd3+ ions in phosphate, silicate, and fluoride glasses. The Auger process involves two Nd3+ ions initially in the 4F3/2 metastable state that interact such that one ion is promoted to a higher lying state, while the other is forced to the 4I(J) levels of the ground state. gamma values ranging from 2.6 to 8.1 x 10(-17) cm3 s-1 were measured, depending on the host medium and neodymium concentration. The product of the emission lifetime and the Auger coefficient was found to be in the range of gammatau = (1-2) x 10(-20) cm3 for the materials investigated. This suggests that Auger upconversion is an important problem for excited state densities approaching (5-10)x10(19) cm-3.
引用
收藏
页码:263 / 268
页数:6
相关论文
共 11 条
[1]  
Bilak V. I., 1978, Soviet Physics - Doklady, V23, P299
[2]  
Blatte M., 1973, Applied Physics, V1, P275, DOI 10.1007/BF00889775
[3]   QUANTUM EFFICIENCY AND EXCITED-STATE RELAXATION DYNAMICS IN NEODYMIUM-DOPED PHOSPHATE LASER GLASSES [J].
CAIRD, JA ;
RAMPONI, AJ ;
STAVER, PR .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1991, 8 (07) :1391-1403
[4]  
GUYOT Y, 1993, J APPL PHYS, V73, P8529
[5]   EXCITED-STATE ABSORPTION OF PUMP RADIATION AS A LOSS MECHANISM IN SOLID-STATE LASERS [J].
KLIEWER, ML ;
POWELL, RC .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1989, 25 (08) :1850-1854
[6]   EFFECTS OF AUGER RECOMBINATION PROCESS ON LASER DYNAMICS [J].
OTSUKA, K ;
KUBODERA, KI .
IEEE JOURNAL OF QUANTUM ELECTRONICS, 1980, 16 (05) :538-541
[7]   THE MECHANISM OF TM -] HO ENERGY-TRANSFER IN LIYF4 [J].
PAYNE, SA ;
SMITH, LK ;
KWAY, WL ;
TASSANO, JB ;
KRUPKE, WF .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1992, 4 (44) :8525-8542
[8]   SPECTROSCOPY AND GAIN MEASUREMENTS OF ND3+ IN SRF2 AND OTHER FLUORITE-STRUCTURE HOSTS [J].
PAYNE, SA ;
CAIRD, JA ;
CHASE, LL ;
SMITH, LK ;
NIELSEN, ND ;
KRUPKE, WF .
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS, 1991, 8 (04) :726-740
[9]  
PAYNE SA, UNPUB APPL OPTICS
[10]   DYNAMICS OF LASER-PUMPED ND-3+ LASER MEDIA AT HIGH-EXCITATION DENSITY [J].
SCHLOSS, JH ;
CHASE, LL ;
SMITH, LK .
JOURNAL OF LUMINESCENCE, 1991, 48-9 :857-862