Generation of Spatial Solitons
The first experiment on spatial optical solitons was reported in 1974 by Ashkin and Bjorkholm in a cell filled with sodium vapor. It was more than another ten years before this field was revisited in experiments at Limoges University in liquid carbon disulphide. After these experiments spatial solitons have been demonstrated in glass, semiconductors and polymers. During the last decade several experiments have been reported on solitons in nematic liquid crystals, also referred to as nematicons.
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