Title :
Nonlinear optical characterization of a generalized Fibonacci optical superlattice
Author :
Zhu, Y.Y. ; Qing, Y.Q. ; Zhu, S.N. ; Ming, N.B.
Author_Institution :
Nat. Lab. of Solid State Microstruct., Nanjing Univ., China
fDate :
Aug. 30 1999-Sept. 3 1999
Abstract :
We report our recent study of quasi-phase-matched (QPM) second- and third-harmonic generation (SHG, THG) in a domain-inverted optical superlattice LiTaO/sub 3/ crystal. A generalized Fibonacci ferroelectric quasiperiodic optical superlattice (QPOS) was constructed using two building blocks, each composed of a pair of oppositely polarized domains. The arrangement of the two types of blocks follow the generalized Fibonacci sequence. The multiwavelength property of the SHG of the QPOS was confirmed experimentally. We found that SHG occurred at several fundamental wavelengths and changed its output color from blue to near infrared. The measured SHG and THG conversion efficiencies were 5-20% and 22%, respectively. The spectra of the SHG were used to determine the dispersion for extraordinary ray.
Keywords :
dielectric polarisation; electric domains; ferroelectric materials; lithium compounds; optical harmonic generation; optical phase matching; superlattices; LiTaO/sub 3/; conversion efficiencies; domain-inverted optical superlattice; extraordinary ray; generalized Fibonacci optical superlattice; multiwavelength property; nonlinear optical characterization; oppositely polarized domains; quasi-phase-matched SHG; quasi-phase-matched THG; Electronic mail; Ferroelectric materials; Laboratories; Nonlinear optics; Optical harmonic generation; Optical polarization; Optical pumping; Optical superlattices; Solid state circuits; Wavelength measurement;
Conference_Titel :
Lasers and Electro-Optics, 1999. CLEO/Pacific Rim '99. The Pacific Rim Conference on
Conference_Location :
Seoul, South Korea
Print_ISBN :
0-7803-5661-6
DOI :
10.1109/CLEOPR.1999.817863
