Abstract
We have successfully fabricated a glass thin film in the BaO-TiO 2-GeO2 system and a fresnoite-type Ba2TiGe 2O8 (BTG) crystalline thin film with second-order optical nonlinearity for the first time. An as-deposited glass thin film showing good transparency and homogeneity could be formed on a fused silica substrate by RF sputtering with a 30BaO-15TiO2-55GeO2 glass target. Subsequently, a transparent BTG-crystallized thin film could be obtained using proper heat-treatment conditions. Furthermore, a clear second-harmonic generation has been observed by the Maker fringe technique in the transparent BTG-crystallized thin films obtained by heat treatment at 730-750°C for 3h.
| Original language | English |
|---|---|
| Pages (from-to) | 7145-7147 |
| Number of pages | 3 |
| Journal | Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers |
| Volume | 46 |
| Issue number | 10 B |
| DOIs | |
| Publication status | Published - 2007 Oct 22 |
Keywords
- Crystallization
- Fresnoit-type phase
- Glass
- Second-order optical nonlinearlty
- Thin film
ASJC Scopus subject areas
- Engineering(all)
- Physics and Astronomy(all)
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Ogawa, R., Masai, H., Takahashi, Y., Mori, H., Fujiwara, T., & Komatsu, T. (2007). Fabrication of Ba2TiGe2O8 thin film with optical nonlinearity. Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 46(10 B), 7145-7147. https://doi.org/10.1143/JJAP.46.7145