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Flow of optical patterns due to small lateral wave-front shifts in a nonlinear optical feedback system |
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| Authors: | Yoshio Hayasaki Yoshihito Yuasa Hirotsugu Yamamoto Nobuo Nishida |
| Affiliation: | Department of Optical Science and Technology, Faculty of Engineering, The University of Tokushima, 2-1 Minamijosanjima-cho, Tokushima 770-8506, Japan |
| Abstract: | Flow of a spontaneously formed optical pattern in a nonlinear optical feedback system consisting of a liquid crystal optically addressable spatial light modulator with feedback is induced by a lateral wave-front shift of the feedback light. We demonstrate the dependency of the flow speed on the wave-front shift by tilting an optical flat inserted in the feedback loop. We also demonstrate the application to real-time, high-sensitivity detection of small tilt angles of optical components. |
| Keywords: | Pattern formation Spatial light modulators Spatiotemporal optical patterns Spatial frequency filters Tilt angle detection |
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