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Filament waveguides from thin air

https://lasermatter.umd.edu/research/filament-waveguides

“Heated air expanding in the wake of an array of laser filaments can guide light signals in a long-lived atmospheric “optical fiber.” Femtosecond filaments arise from interplay between nonlinear self-focusing of ultrashort pulse laser beams in transparent media (such as air) and defocusing by field...” (from the page’s text)

Topic: Educational
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Language: English
Text on page: 2,032 characters
Page size: 36 kB
Answered: OK (200), HTML
Last read: 8 Oct 2026
In our index since: 8 Oct 2026
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