Effect of proton exchange and annealing on diffraction efficiency of Fe:LiNbO3 crystals
β Scribed by S. Kar; Sunil Verma; M.W. Shaikh; K.S. Bartwal
- Publisher
- Elsevier Science
- Year
- 2009
- Tongue
- English
- Weight
- 254 KB
- Volume
- 404
- Category
- Article
- ISSN
- 0921-4526
No coin nor oath required. For personal study only.
π SIMILAR VOLUMES
Z-cut congruent LiNbO 3 single crystals were annealed in 95%N 2 +5%H 2 at high temperatures. X-ray diffraction showed that 2y of (0 0 0 6) peak is obviously reduced by 0.61 and 1.01 for the samples annealed at 600 and 900 1C, respectively. A new peak appears at the high-energy side of O 1s spectrum
## Abstract Three kinds of different Zn:Fe:LiNbO~3~ wafers are prepared by proper reduction or oxidation postβtreatment processes. The opticalβdamageβresistance abilities and photorefractive properties are studied using the optical compensator technique and twoβwave coupling measurement, respective
A study on LiNbO 3 single-crystal samples obtained by different treatments has been performed by means of Raman and Infrared spectra. Raman scattering spectra show that some modes not only couple each other but also exchange intensities. Two characteristic absorption peaks at 2840 and 2920 cm Γ1 in