Study on the second-harmonic generation of YCa4O(BO3)(3) crystals along various phase-matching directions

Citation
Sj. Zhang et al., Study on the second-harmonic generation of YCa4O(BO3)(3) crystals along various phase-matching directions, PHYS ST S-A, 183(2), 2001, pp. 435-438
Citations number
15
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH
ISSN journal
0031-8965 → ACNP
Volume
183
Issue
2
Year of publication
2001
Pages
435 - 438
Database
ISI
SICI code
0031-8965(200102)183:2<435:SOTSGO>2.0.ZU;2-D
Abstract
Large size and high-quality YCa4O(BO3)(3) (YCOB) crystal can be grown using the conventional Czochralski pulling method. The theoretical calculations of the effective coefficient (d(eff)) and the walk-off angles at 530 nm of YCOB along various phase-matching (PM) directions are reported. The PM dire ction along (theta = 64.5 degrees, phi = 144.5 degrees) for YCOB crystal ha s the largest d(eff). Second-harmonic generation (SHG) experiments were per formed on YCOB crystal along various PM directions. The results show that i n 6 mm long YCOB crystal, the SHG conversion efficiency is 39% along the PM direction (theta = 64.5 degrees, phi,= 144.5 degrees) at 80 MW/cm(2) input power density, which is larger than that along (theta = 64.5 degrees, phi = 35.5 degrees) and the PM direction in the XZ main plane. The experimental result is in good agreement with the theoretical calculations.