Mainz 2017 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 43: Laser Applications: Optical Measurement Technology
Q 43.1: Gruppenbericht
Donnerstag, 9. März 2017, 11:00–11:30, P 5
Novel optical beams, from accelerating wavepackets to Janus waves — •Dimitrios Papazoglou1,2 and Stelios Tzortzakis1,2,3 — 1Institute of Electronic Structure and Laser, Foundation for Research and Technology-Hellas, P.O. Box 1527, 71110, Heraklion, Greece — 2Department of Material Science and Technology, University of Crete, P.O. Box 2208, 71003, Heraklion, Greece — 3Science Program, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar
Lately a plethora of optical beams with non-trivial amplitude and phase distributions like for example the accelerating Airy and ring-Airy beams have been introduced. These novel optical beams propagate in curved trajectories and resist to diffraction or dispersion. Therefore, they are able to self-heal and bypass obstacles, advantages that make them exiting for applications ranging from materials processing to telecommunications. Recently we have revealed that these waves are members of the broader family of Janus waves. Counterintuitively, when these Janus waves are focused, two focal regions, instead of one are formed. On the other hand, the generation and control of these wavepackets is not trivial. Their complexity challenges our current state of the art techniques for wavefront shaping, and has urged us to exploit, among others, unconventional approaches like the use of optical aberrations. The talk will focus on the exciting ongoing quest of materializing these novel optical wavepackets, and their usage to a broad range of applications ranging from tailored filaments, light bullets, multi-photon polymerization and THz generation.