Direct Measurement of the Topological Charge in Elliptical Beams Using Diffraction by a Triangular Aperture
Sign Up to like & getrecommendations! Published in 2018 at "Scientific Reports"
DOI: 10.1038/s41598-018-24928-5
Abstract: We introduce a simple method to characterize the topological charge associated with the orbital angular momentum of a m-order elliptic light beam. This method consists in the observation of the far field pattern of the… read more here.
Keywords: measurement topological; direct measurement; topological charge; triangular aperture ... See more keywords
Direct Measurement of Topological Properties of an Exceptional Parabola.
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DOI: 10.1103/physrevlett.127.034301
Abstract: Non-Hermitian systems can produce branch singularities known as exceptional points (EPs). Different from singularities in Hermitian systems, the topological properties of an EP can involve either the winding of eigenvalues that produces a discriminant number… read more here.
Keywords: parabola; topological properties; non hermitian; topology ... See more keywords