In a recent experiment, published in Physical Review X, Howard Milchberg and his colleagues in the intense laser-matter interactions group demonstrate that femtosecond filaments can set up an extended and robust thermal waveguide structure in air with a lifetime of several milliseconds, making possible the very-long-range guiding and distant projection of high-energy laser pulses and high-average power beams. This is the subject of articles that appear in the latest issues of APS Viewpoint, Physics Today and Science News.

APS/Alan Stonebraker
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