The propagation of ultra-intense self-bending Airy beams in linear optics transparent dielectric media is studied. The most unusual property of an Airy beam is its ability to self-bend on propagation, when the entire beam pattern shifts sideways and traverses a parabolic trajectory. This mechanical free-fall, such self-bending is sometimes referred to as beam acceleration. The dominant sub-pulse in the temporal Airy wavepacket propagates with a speed that is different from the group velocity of light in the medium and accelerates upon propagation. Researchers have realized Airy beams in the area of ultra-intense femtosecond nonlinear optics. In these experiments, 35-fs-long pulses with multi-mJ pulse energy and a Gaussian beam profile were transformed into femtosecond Airy beams by using a transmissive cubic phase mask and lens focusing. The numerical modeling of filamentation with Airy beams revealed that, at low pulse energies, the generated plasma channels were continuous.
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering