Spatiotemporal optical vortices, or STOVs (thin, gray ringlike objects), are newly described three-dimensional light structures that strongly resemble smoke rings. Unlike other laser vortices, STOVs are time dynamic, which means that they travel along with the central laser pulse. Compared to other laser vortices, STOVs could prove more broadly useful for engineering applications. Credit: Howard Milchberg
3-D ring structures made by high-intensity lasers could aid the design of powerful microscopes and more efficient telecommunication lines...
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