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Brief Communications
Nature 432, 165 (11 November 2004) | doi:10.1038/432165a; Published online 10 November 2004
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Laser beams: Knotted threads of darkness
Jonathan Leach1, Mark R. Dennis2,3, Johannes Courtial1 & Miles J. Padgett1
Abstract
Destructive interference may lead to complete cancellation when light waves travelling in different directions cross, and in three-dimensional space this occurs along lines that are vortices of electromagnetic energy flow1. Here we confirm theoretical predictions2, 3 by experimentally creating combinations of optical laser beams in which these dark threads form stable loops that are linked and knotted.
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RESEARCH
Laser beams Knotted threads of darknessNature Brief Communication (11 Nov 2004)
Supplementary InformationNature Physics Letter (01 Sep 2008)
Entanglement of the orbital angular momentum states of photonsNature Letters to Editor (19 Jul 2001)
Growth of 'dizzy dendrites' in a random field of foreign particlesNature Materials Letter (01 Feb 2003)
