Anti-diffraction is a theoretically predicted nonlinear optical phenomenon that occurs when a light beam spontaneously focalizes independently of its intensity. We observe anti-diffracting beams supported by the peak-intensity-independent diffusive nonlinearity that are able to shrink below their diffraction-limited size in photorefractive lithium-enriched potassium-tantalate-niobate (KTN:Li). (C)2014 Optical Society of America
Anti-diffracting beams through the diffusive optical nonlinearity
J. Parravicini;D. Pierangeli;C. Conti;E. Del Re
2014
Abstract
Anti-diffraction is a theoretically predicted nonlinear optical phenomenon that occurs when a light beam spontaneously focalizes independently of its intensity. We observe anti-diffracting beams supported by the peak-intensity-independent diffusive nonlinearity that are able to shrink below their diffraction-limited size in photorefractive lithium-enriched potassium-tantalate-niobate (KTN:Li). (C)2014 Optical Society of AmericaFile in questo prodotto:
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Descrizione: Anti-diffracting beams through the diffusive optical nonlinearity
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