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Perfect space-time vortices

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posted on 2024-05-08, 09:56 authored by Sergey Ponomarenko, Davud Hebri
We introduce the concept of perfect space-time vortices (PSTV) that can exist in media with anomalous disper- sion. If the topological charge of a PSTV is not too large, the spatio-temporal intensity distribution of the vortex field does not depend on the magnitude of the topolog- ical charge. We show theoretically how a PSTV can be realized in the optical context through spatio-temporal focusing of a Bessel-Gaussian space-time optical vortex source that is placed in the focal plane of a space-time lens composed of an ordinary lens and a time lens with matched spatial and temporal focal lengths.

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Funder Name

Natural Sciences and Engineering Research Council of Canada (RGPIN-2018-05497)

Preprint ID

112734

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