Externally refuelled optical filaments

• DOI: 10.1038/nphoton.2014.47
• Publication Date: 2014-03-21T13:16:49Z
• Authors: Maik Scheller; Matthew S. Mills; Mohammad-Ali Miri; Weibo Cheng; Jerome V. Moloney; Miroslav Kolesik; Pavel Polynkin; Demetrios N. Chri...
• Keywords: Filamentation; Attosecond; Microbeam

Plasma channels induced in air by femtosecond-laser filamentation are useful for many applications, including attosecond physics and spectroscopy and remote sensing. By appropriately employing a surrounding auxiliary dressing beam to continuously supply energy to the filament, the natural range of the plasma column has been extended by at least one order of magnitude.