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).
Anti-diffracting beams through the diffusive optical nonlinearity / Di Mei F.; Parravicini J.; Pierangeli D.; Conti C.; Agranat A.J.; DelRe E.. - In: OPTICS EXPRESS. - ISSN 1094-4087. - ELETTRONICO. - 22:(2014), pp. 31434-31439. [10.1364/OE.22.031434]
Anti-diffracting beams through the diffusive optical nonlinearity
Parravicini J.;
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).
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