This paper discusses a nontraditional optical shaping system for generating extended plasma channels in the atmosphere, using pulsed CO<sub>2</sub> lasers and consisting of a convex mirror axicon with a rectilinear generatrix and a retranslating layout composed of two spherical optical elements. The system makes it possible to form the waist of a Bessel beam at a significant distance from the axicon. An analytical model is proposed for designing the developed optical system.
© 2008 Optical Society of America
A. A. Ageĭchik, Yu. A. Rezunkov, V. P. Savel'eva, V. V. Stepanov, and B. A. Belobragin, "Optical systems based on conical elements for forming extended plasma channels in the atmosphere," J. Opt. Technol. 75, 537-540 (2008)