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Observation of concentrating paraxial beams

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posted on 2023-11-30, 20:30 authored by Andrea Aiello, Martin Paur, Bohumil Stoklasa, Zdenek Hradil, Jaroslav Rehacek, Luis L. Sanchez-Soto
We report,to the best of our knowledge, the first observation of concentrating paraxial beams of light in a linear nondispersive medium. We have generated this intriguing class of light beams, recently predicted by one of us, in both one- and two-dimensional configurations. As we demonstrate in our experiments, these concentrating beams display unconventional features, such as the ability to strongly focus in the focal spot of a thin lens like a plane wave, while keeping their total energy finite.

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