Abstract
Langasite-type crystals such as Ba3Ga2Ge4O14 and BaGa4La2Ge2O14 are formed through the crystallization of gallium germanate glasses with stoichiometric compositions corresponding to langasite-type phases and optical properties of crystallized glasses are clarified. It is found that the single langasite-type phase is easily formed in each corresponding glass. The crystallized glasses with highly oriented langasite-type crystals at the surface are fabricated using an ultrasonic surface treatment method. The crystallized glasses with BaxGa5-xLa3-xGe1+xO14 phases show moderate second harmonic (SH) intensities of 5-75 times as large as α-quartz, and it is found that the SH intensity of BaxGa5-xLa3-xGe1+xO14 phases increases with the increase of the La3+/Ba2+ ratio. The feature of fluorescence spectra of Eu3+ ions incorporated into langasite-type crystals is also discussed.
| Original language | English |
|---|---|
| Pages (from-to) | 1129-1135 |
| Number of pages | 7 |
| Journal | Optical Materials |
| Volume | 28 |
| Issue number | 10 |
| DOIs | |
| Publication status | Published - Jul 2006 |
| Externally published | Yes |
Keywords
- Crystallized glass
- Gallium germanate glass
- Langasite-type crystals
- Second harmonic generation
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Computer Science(all)
- Atomic and Molecular Physics, and Optics
- Spectroscopy
- Physical and Theoretical Chemistry
- Organic Chemistry
- Inorganic Chemistry
- Electrical and Electronic Engineering