2021/02/18 by Мurat Yessenov, Murat Yessenov, Yessenov, Murat +4 · 3 citations
Engineering · Mathematics · Physics and Astronomy · #Advanced Fiber Laser Technologies #Computer science #Dispersion (optics) #FOS: Physical sciences #Group delay dispersion #Group velocity #Mathematical analysis #Mathematics #Optics #Optics (physics.optics) #Orbital Angular Momentum in Optics #Photonic and Optical Devices #Photonic crystal #Physics #Quantum mechanics #Sign (mathematics) #Slow light #Space (punctuation) #Wave packet #physics.optics
paper · pdf · doi:10.48550/arxiv.2102.09443
published in arXiv (Cornell University) (Cornell University)
arxiv created 2021/02/18 · openalex publication_date 2021/02/18 · arxiv updated 2021/02/19 · openalex created_date 2022/07/25 · openalex updated_date 2026/08/08
Spatial structuring of an optical pulse can lead in some cases upon free\npropagation to changes in its temporal profile. For example, introducing\nconventional angular dispersion into the field results in the pulse\nencountering group-velocity dispersion in free space. However, only limited\ncontrol is accessible via this strategy. Here we show that precise and\nversatile control can be exercised in free space over the dispersion profile of\nso-called `space-time' wave packets: a class of pulsed beams undergirded by\nnon-differentiable angular dispersion. This abstract mathematical feature\nallows us to tune the magnitude and sign of the different dispersion orders\nwithout introducing losses, thereby realizing arbitrary dispersion profiles,\nand achieving dispersion values unattainable in optical materials away from\nresonance. Unlike optical materials and photonic structures in which the values\nof the different dispersion orders are not independent of each other, these\norders are addressable separately using our strategy. These results demonstrate\nthe versatility of space-time wave packets as a platform for structured light\nand point towards their utility in nonlinear and quantum optics.\n