GROWTH AND ULTRAVIOLET APPLICATION OF LI2B4O7 CRYSTALS - GENERATION OF THE 4TH AND 4TH HARMONICS OF ND-Y3AL5O12 LASERS

Authors
KOMATSU R SUGAWARA T SASSA K SARUKURA N LIU Z IZUMIDA S SEGAWA Y UDA S FUKUDA T YAMANOUCHI K
Citation
R. Komatsu et al., GROWTH AND ULTRAVIOLET APPLICATION OF LI2B4O7 CRYSTALS - GENERATION OF THE 4TH AND 4TH HARMONICS OF ND-Y3AL5O12 LASERS, Applied physics letters, 70(26), 1997, pp. 3492-3494
Citations number
10
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
70
Issue
26
Year of publication
1997
Pages
3492 - 3494
Database
ISI
SICI code
0003-6951(1997)70:26<3492:GAUAOL>2.0.ZU;2-A
Abstract
A 2 in. diam single crystal of lithium tetraborate (Li2B4O7) was succe ssfully grown by the Czochralski method. The crystal was free from mac rodefects and had a dislocation density as low as 100/cm(2). It had an excellent homogeneity of the refractive index and a wide transparency down to 170 nm. The optical damage threshold was 40 GW/cm(2). Second- harmonic generation and sum frequency generation were investigated in association with the generation of the fourth and fifth harmonics of a e-switched Nd:YAG laser. The conversion efficiency of the second-harm onic generation from the green (532 nm) light was 20%. (C) 1997 Americ an Institute of Physics.