Electron-Beam Poling on Ti:LiNbO(3).
作者信息
Restoin C, Darraud-Taupiac C, Decossas J L, Vareille J C, Couderc V, Barthélémy A, Martinez A, Hauden J
出版信息
Appl Opt. 2001 Nov 20;40(33):6056-61. doi: 10.1364/ao.40.006056.
The periodic domain inversion by direct electron-beam (EB) bombardment on Ti:LiNbO(3) is presented. Gratings with a 6.6-mum 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 LiNbO(3) and Ti:LiNbO(3). 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 LiNbO(3) 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.
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