2018/03/05 by Meredith Henstridge, Carl Pfeiffer, Henstridge, Meredith +11
Physics and Astronomy · #FOS: Physical sciences #Optics (physics.optics) #physics.optics
paper · pdf · doi:10.48550/arxiv.1803.01769
16 pages, 3 figures
arxiv created 2018/04/24 · arxiv updated 2018/04/25
It has been recently shown that especially engineered light beams have the remarkable ability to propagate along curved trajectories in vacuum. Current methods for generating accelerating beams use phase modulators and lenses leading to length scales on the order of tens of centimeters or larger. This poses constraints and severely limits their applicability inside materials. Here, we accelerate light inside glass using a metasurface consisting of plasmonic nanoantennas. Highly-bending beams with radii of curvature on the order of a hundred microns were generated, and the imaged intensities agree well with theory. Our approach for generating accelerating beams allows for their integration into on-chip photonic systems.