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).
Di Mei, F., Parravicini, J., Pierangeli, D., Conti, C., Agranat, A., Delre, E. (2014). Anti-diffracting beams through the diffusive optical nonlinearity. OPTICS EXPRESS, 22(25), 31434-31439 [10.1364/OE.22.031434].
Anti-diffracting beams through the diffusive optical nonlinearity
Parravicini J.Secondo
;
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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