Abstract

Generation of ultra-broadband beams with a non-trivial wave-front is a major challenge [1,2]. Such beams are of interest in many fields ranging from bio-medical applications to materials processing and optical telecommunications. Recently a novel type of accelerating, non diffracting beams where the distribution is described by an Airy function, was introduced [3,4]. In order to generate such complex beams, a Gaussian beam is spatially shaped by imprinting a cubic phase [3]. Usually this is performed by using a phase spatial light modulator (SLM) which although tunable it lucks in spectral bandwidth and intensity threshold.

© 2019 IEEE

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