Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals
LI Da-Shan 1, LIU De-An1, ZHI Ya-Nan1, QU Wei-Juan1, LIU Li-Ren1, ZHANG Juan2
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 2018002School of Communication and Information Engineering, Shanghai University, Shanghai 200072
Red Laser-Induced Domain Inversion in MgO-Doped Lithium Niobate Crystals
LI Da-Shan 1;LIU De-An1;ZHI Ya-Nan1;QU Wei-Juan1;LIU Li-Ren1;ZHANG Juan2
Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, PO Box 800-211, Shanghai 2018002School of Communication and Information Engineering, Shanghai University, Shanghai 200072
摘要A laser beam at wavelength 647nm is focused on a sample of 5mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation (nucleation field) is observed. To the best of our knowledge, it is the longest wavelength reported for laser-induced domain inversion. This extends the spectrum of laser inducing, and the experimental results are helpful to understand the nucleation dynamics under laser illumination. The dependence of nucleation fields on intensities of laser beams is analysed in experiments.
Abstract：A laser beam at wavelength 647nm is focused on a sample of 5mol% MgO-doped lithium niobate crystal for domain inversion by a conventional external electric field. In this case, a reduction of 36% in the electric field required for domain nucleation (nucleation field) is observed. To the best of our knowledge, it is the longest wavelength reported for laser-induced domain inversion. This extends the spectrum of laser inducing, and the experimental results are helpful to understand the nucleation dynamics under laser illumination. The dependence of nucleation fields on intensities of laser beams is analysed in experiments.
[1] Arizmendi L 2004 Phys. Status Solidi A 201 253 [2] Ji F, Zhang B G, Li E B et al 2006 Chin. Phys. Lett. 232113 [3] Zhang B G, Yao J S, Lu Y et al 2005 Chin. Phys. Lett. 22 1691 [4] Lin X C, Zhang Y, Kong Y P et al 2004 Chin. Phys. Lett. 21 98 [5] Yamada M, Nada N, Saitoh M et al 1993 Appl. Phys. Lett. 62 435 [6] Wengler M C, Fassbender B, Soergel E et al 2004 J. Appl.Phys. 96 2816 [7] Wengler M C, Heinemeyer U, Soergel E et al 2005 J. Appl.Phys. 98 064104 [8] Fujimura A, Sohmura T and Suhara T 2003 Electron. Lett. 39 719 [9] M\"uller M, Soergel E and Buse K 2003 Appl. Phys. Lett. 83 1824 [10] Dierolf V and Sandmann C 2004 Appl. Phys. Lett. 843987 [11] Sones C L, Wengler M C, Valdivia C E et al 2005 Appl. Phys.Lett. 86 212901 [12] Qu W J, Liu D A, Zhi Y N et al 2006 Acta Phys. Sin-CH ED 55 4276 [13] Zhi Y N, Qu W J, Liu D A et al 2006 Appl. Phys. Lett. 89 112912 [14] Gopalan V and Mitchell T E 1998 J. Appl. Phys. 83 941 [15] Zhong J G, Jin J and Wu Z K 1980 IEEE Proc. 80631 [16] Schirmer O F, Thiemann O and Whlecke M 1991 J. Phys. Chem.Solids 52 185 [17] Iyi N, Kitamura K, Yajima Y et al 1995 J. Solid State Chem. 118 148
2007, Vol. 24 
