Physics - Air Waveguide from “Donut” Laser Beams

Low-noise frequency-agile photonic integrated lasers for coherent ranging

Researchers at University of Maryland Break Record for Laser Guided Light with Air Waveguide Experiment : r/Physics

Coherent beam transformations using multimode waveguides

Formation Rules and Dynamics of Photoinduced χ(2) Gratings in Silicon Nitride Waveguides

Generation of a laser filament in the air using a laser source of

Coherent beam transformations using multimode waveguides

What is the difference between a laser and a particle beam? - Quora

Klystron - Wikipedia

Integrating a Nanowire Laser in an on-Chip Photonic Waveguide