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Second Harmonic Generation from Surface Crystallized Li 2 O–Ta 2 O 5 –SiO 2 Glass

1996; Institute of Physics; Volume: 35; Issue: 10R Linguagem: Inglês

10.1143/jjap.35.5355

1347-4065

Hiromi Hase, Hiroyuki Nasu, Akihiro Mito, Tadanori Hashimoto, Jun Matsuoka, Kanichi Kamiya,

Photonic Crystals and Applications

Preferential c -axis orientation of LiTaO 3 was observed in surface crystallized 35Li 2 O·30Ta 2 O 5 ·35SiO 2 glass. Second harmonic generation (SHG) was observed in surface crystallized glass poled at room temperature for 24 h under a 0.7 kV dc voltage, whereas it was not observed in an unpoled sample. The SHG observed in this study was attributed to residual polarization in LiTaO 3 . The d 33 value of the poled sample was estimated as 0.13 pm/V which was 0.5% of the d 33 value for LiTaO 3 single crystal.