Bauer, T.A. (author), Banzer, Peter (author), Bouchard, Frédéric (author), Orlov, Sergej (author), Marrucci, Lorenzo (author), Santamato, Enrico (author), Boyd, Robert W. (author), Karimi, Ebrahim (author), Leuchs, Gerd (author) Electromagnetic plane waves, solutions to Maxwell's equations, are said to be 'transverse' in vacuum. Namely, the waves' oscillatory electric and magnetic fields are confined within a plane transverse to the waves' propagation direction. Under tight-focusing conditions however, the field can exhibit longitudinal electric or magnetic...
journal article 2019
