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High repetition rate ultrashort laser cuts a path through fog

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 نشر من قبل Jerome Kasparian
 تاريخ النشر 2016
  مجال البحث فيزياء
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We experimentally demonstrate that the transmission of a 1030~nm, 1.3~ps laser beam of 100 mJ energy through fog increases when its repetition rate increases to the kHz range. Due to the efficient energy deposition by the laser filaments in the air, a shockwave ejects the fog droplets from a substantial volume of the beam, at a moderate energy cost. This process opens prospects for applications requiring the transmission of laser beams through fogs and clouds.



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