Broad-spectrum and long-lifetime emissions of Nd3+ ions in lead fluorosilicate glass.
A novel Nd(3+)-doped lead fluorosilicate glass (NPS glass) is prepared by a two-step melting process. Based on the absorption spectrum a Judd-Ofelt theory analysis is made. The emission line width of NPS glass is 44.2 nm. The fluorescence decay lifetime of the (4)F(3/2) level is 586+/-20 microsec, and the stimulated emission cross-section is 0.87x10(-20)cm(2)at 1056 nm. A laser oscillation is occurred at 1062 nm when pumped by 808 nm Diode Laser. The slope efficiency is 23.7% with a 415 mJ threshold. It is supposed that NPS glass is a good candidate for using in ultra-short pulse generation and amplification by the broad emission bandwidth and long fluorescence lifetime.
Zou
Kuaisheng
K
State Key Laboratory of Transient Optics and Photonics, Xi'an Institute of Optics and precision Mechanics, Chinese Academy of Science, Xi'an, Shaanxi , PR China.
Guo
Haitao
H
Lu
Min
M
Li
Weinan
W
Hou
Chaoqi
C
Wei
Wei
W
He
Junfang
J
Peng
Bo
B
Xiangli
Bin
B
D003461:Crystallography / Q000379:methods*; D005898:Glass / Q000737:chemistry* / Q000528:radiation effects; D007477:Ions; D007854:Lead / Q000737:chemistry* / Q000528:radiation effects; D019369:Life; D008029:Lighting / Q000379:methods*; D008422:Materials Testing; D009354:Neodymium / Q000737:chemistry* / Q000528:radiation effects; D017640:Silicates / Q000737:chemistry* / Q000528:radiation effects; D013050:Spectrometry, Fluorescence / Q000379:methods*
D007477:Ions; D017640:Silicates; D009354:Neodymium; D007854:Lead