Dark and bright photovoltaic spatial solitons

Stanford University, Palo Alto, California, United States
Physical Review A (Impact Factor: 2.99). 01/1995; 50(6):R4457-R4460. DOI: 10.1103/PhysRevA.50.R4457
Source: PubMed

ABSTRACT Dark (b) planar spatial solitons are predicted for photovoltaic photorefractive materials when the diffraction of an optical beam is exactly compensated by nonlinear self-defocusing (focusing) due to the photovoltaic field and electro-optic effect. These solitons may have steady-state irradiances of microwatts to milliwatts per square centimeter and widths as small as 10 mum in lithium niobate. Optical control is provided by incoherent illumination, and the nonlinear index of a dark soliton may be used to trap a bright soliton by rotating the plane of polarization of the soliton field.

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Available from: Bruno Crosignani, Jun 23, 2015