Photorefractive surface waves at the interface of Sr0.6Ba0.4NbO3 and air with diffusion mechanism

• Published in: Journal of modern optics Vol. 54; no. 8; pp. 1165 - 1171
• Main Authors: Zhang, T. H., Yang, J., Kang, H. Z., Feng, L., Lou, C. B., Ren, X. K., Yang, D. P., Lu, Y. Z., Wang, B. H., Hu, Z. J., Xu, Y. H., Shao, W. W., Zhang, C. P., Xu, J. J.
• Format: Journal Article
• Language: English
• Published: London Taylor & Francis Group 20.05.2007; Taylor & Francis
• Subjects: Exact sciences and technology; Fundamental areas of phenomenology (including applications); Nonlinear optics; Optical materials; Optics; Other nonlinear optical materials; photorefractive and semiconductor materials; Phase conjugation, optical mixing; photorefractive and kerr effects; Physics; Photorefractive effect; Non linear material; Surface waves; Barium niobates; Photorefractive materials; Theoretical study; Strontium niobates; Optical materials; Experimental study; Quaternary compounds; Nonlinear optics
• ISSN: 0950-0340; 1362-3044
• DOI: 10.1080/09500340601111152

Photorefractive surface waves on the surface of Sr 0.6 Ba 0.4 NbO 3 with a diffusion mechanism of nonlinearity have been observed. The formation time of the photorefractive surface waves is related to the intensity of the incident beam and the background illumination. The formation time of the photorefractive surface waves is about 40 min with a beam intensity of 3 mW, 25 min with 10 mW, and 30 s with 10 mW when an additional background illumination is applied. The experimental results showed that an appropriate background illumination will shorten the photorefractive response time.