| Autor: |
Kostritskii, S. M., Korkishko, Yu. N., Fedorov, V. A., Maring, D. B., Tavlykaev, R. F., Ramaswamy, R. V. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2/1/2002, Vol. 91 Issue 3, p930, 9p, 2 Charts, 7 Graphs |
| Abstrakt: |
Annealed proton-exchanged wave guides in X-cut LiTaO[sub 3] were characterized by infrared reflection and Raman scattering spectroscopy. The measured spectra were related to the multiple crystalline phases of H[sub x]Li[sub 1-x]TaO[sub 3] as identified by direct wave guide index profiling. Unique relationships were found to exist between the crystalline phases and corresponding spectra, which thus can be used to identify phase contents in a given wave guide. Vibrational bands of the studied spectra were correlated with the electro-optic properties of H[sub x]Li[sub 1-x]TaO[sub 3] phases. Phase-dependent anisotropy of protonic conductivity was predicted based on the observed polarization dependence of OH libration bands. Finally, the electro-optic coefficient r[sub 33] was theoretically estimated for all phases and compared with previously reported experimental data. © 2002 American Institute of Physics. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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