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Transformation of Bessel beams by means of a cylindrical lens
1Centro de Investigaciones en Optica, A. C. Lomas del Bosque 115, Col. Lomas del Campestre, León, Guanajuato, México 37150. anguiano@cio.mx
Abstract:
The diffraction patterns of a conical lens illuminated by plane and spherical waves have been intensively investigated. A practical method is described to transform the Bessel profile of a zero-order Bessel beam into a caustic one through the use of a combination of a conical lens and a cylindrical lens, which in turn transforms the field generated by the conical lens. The cylindrical lens was illuminated by a zero-order Bessel beam, producing a lips caustic beam. It is shown that this type of wave tends to regenerate during propagation, although the waves are severely perturbed.
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