Europhys. Lett.
Volume 68, Number 6, December 2004
Page(s) 804 - 810
Section Electromagnetism, optics, acoustics, heat transfer, classical mechanics, and fluid dynamics
Published online 26 November 2004
Europhys. Lett., 68 (6), pp. 804-810 (2004)
DOI: 10.1209/epl/i2004-10295-1

High-order quasi-phase-matching harmonic generation in two-dimensional orthorhombic lattice

Boqin Ma, Ting Wang, Peigen Ni, Bingying Cheng and Daozhong Zhang

Laboratory of Optical Physics, Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences - Beijing 100080, PRC

received 2 June 2004; accepted in final form 22 October 2004
published online 26 November 2004

The effective high-order quasi-phase-matching second- and third-harmonic generations were realized in a two-dimensional periodically poled $\chem{LiNbO_3}$ with rectangular lattice. The output spots lay at different symmetric places with respect to the input beam of picosecond pulse and the relative intensities of spots at some certain wavelengths were measured. The experimental and theoretical results are in good agreement. Our studies might be beneficial to the development of optics integration and compact devices.

42.65.Ky - Frequency conversion; harmonic generation, including higher-order harmonic generation.
42.70.Mp - Nonlinear optical crystals.

© EDP Sciences 2004