Studies of photorefractive fields of MnO doped near stoichiometric LiNbO3 crystals

✍ Scribed by Zhijie Sun; Hongtao Li; Wei Cai; Liancheng Zhao

• Publisher: Elsevier Science
• Year: 2004
• Tongue: English
• Weight: 308 KB
• Volume: 242
• Category: Article
• ISSN: 0030-4018
• DOI: 10.1016/j.optcom.2004.08.033

✦ Synopsis

Photorefractive field properties of MnO doped near stoichiometric LiNbO 3 crystals were studied. The crystals have been grown by the top seeded solution growth method by adding K 2 O flux to Li 2 O-Nb 2 O 5 melt. Their IR spectra and domain structures showed that the crystals were near stoichiometric. From the results of the two-wave coupling experiments of the crystals, the effective charge density N eff , the maximum saturation field E q , the photovoltaic field E ph , the diffusion field E d , and the space charge field E sc were calculated by iterative method.