5 papers · 1 filter
Spatiotemporal representation of a two-vortex reconnection as a single rotating vortex
Jordan M. Adams
Reconnections and rotations of lines are dual descriptions of the same saddle-shaped spacetime surface. We show that a reconnection between two line occurring over time is a single…
Knotted spacetime electromagnetic vortex unlinking and unknotting with vector and scalar reconnections and field twist compensation
Jordan M. Adams
Optical vortex knots have been realized in monochromatic laser beams, but monochromatic fields are stationary and their topology is frozen. Here we show that knotted spatiotemporal…
Arbitrary geometry electromagnetic spatiotemporal vortices from phase velocity shearing
Jordan M. Adams, Daniel Heligman, Rajind Mendis +1
In fluids, vortices form at boundaries between flows of different velocities. Here, we show that pulsed electromagnetic waves form spatiotemporal vortices when light straddles medi…
Three-dimensional Arbitrary Electromagnetic Fields and Temporal Propagation
Jordan M. Adams, Daniel M. Heligman
We show that arbitrary 3D electromagnetic fields are transient solutions to Maxwell's equations and provide a simple equation to find how the field evolves over time. Multiple 3D f…
Laser Printing of Silver and Silver Oxide
Jordan M. Adams, Daniel Heligman, Ryan O'Dell +2
We show that direct laser writing in aqueous silver nitrate with a = 1030 nm femtosecond laser results in deposition of a mixture of silver oxide and silver, in contrast to th…