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Formation of Photorefractive Solitons in Barium-Calcium Titanate: From Dark and Bright Solitons to Self-Trapped Bright Rings

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Abstract

We investigate photorefractive spatial soliton formation in iron-doped barium-calcium titanate. In this material with both photovoltaic and screening nonlinearity, we observe bright and dark spatial solitons, as well as the propagation of self-trapped bright rings.

© 2002 Optical Society of America

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