By focusing ultrashort laser pulses in air with axicon, long and continuous plasma channels can be formed. The channel length is significantly longer than that obtained by filamentation with lens of same effective focal distance.
© 2008 Optical Society of America
S. Akturk, B. Zhou, B. Pasquiou, A. Houard, M. Franco, A. Couairon, and A. Mysyrowicz, "Generation of Long Plasma Channels in Air by Using Axicon-Generated Bessel Beams," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest (CD) (Optical Society of America, 2008), paper CWI7.
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