Abstract
The periodic domain inversion by direct electron-beam (EB) bombardment on Ti:LiNbO3 is presented. Gratings with a 6.6-µm period are achieved. The inverted patterns are observed after chemical etching by use of a scanning electron microscope, and they exhibit a high resolution, as expected. Next, the influence of the EB parameters on the inversion phenomenon is developed for both LiNbO3 and Ti:LiNbO3. In this way we can provide an explanation of the phenomenon of domain inversion with an EB, which is not completely understood. Finally, quasi-phase-matched second-harmonic generation is presented in bulk LiNbO3 by use of a Nd:YAG laser light. These experiments allowed us to achieve the characteristics of the inverted domains along the crystal in particular.
© 2001 Optical Society of America
Full Article | PDF ArticleMore Like This
D. Hofmann, G. Schreiber, C. Haase, H. Herrmann, W. Grundkötter, R. Ricken, and W. Sohler
Opt. Lett. 24(13) 896-898 (1999)
Wei-Yung Hsu and Mool C. Gupta
Appl. Opt. 32(12) 2049-2052 (1993)
Tomoya Sugita, Kiminori Mizuuchi, Yasuo Kitaoka, and Kazuhisa Yamamoto
Opt. Lett. 24(22) 1590-1592 (1999)