The Generation Mechanism of Airy–Bessel Wave Packets in Free Space

Localized optical Airy–Bessel configuration wave packets were first generated on the basis of a grating-telescope combination Nat. Photon. 4 (2010) 103. By studying the spatially induced group velocity dispersion effect of ultrashort pulsed Bessel beams during propagation, we find the universal physical foundation of generating Airy–Bessel wave packets (ABWs) in free space. The research results are expected to open up more common channels for generating stable linear localized ABWs.