Optical vortex
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An optical vortex is a zero of an optical field; a point of zero intensity. The term is also used to describe a beam of light that has such a zero in it. The study of these phenomena is known as singu
Vortices created by CGH
Electromagnetic field
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An electromagnetic field is a physical field, varying in space and time, that represents the electric and magnetic influences generated by and acting upon electric charges. The field at any point in s
Optical vortex
…An optical vortex (also known as an optical phase singularity, photonic quantum vortex, or screw dislocation) is a zero of an optical field; a point of zero intensity. The term is also used to describe a beam of light that has such a zero in it. The study of these phenomena is known as…
Results of Michael Faraday's iron filings experiment.