Abbreviated Journal Title
Appl. Phys. Lett.
FEMTOSECOND LASER-PULSES; BESSEL BEAMS; PLASMA CHANNELS; AIR; GENERATION; DIFFRACTION; AXICON; LIGHT; Physics, Applied
The shaping of laser-induced filamenting plasma channels into helical structures by guiding the process with a non-diffracting beam is demonstrated. This was achieved using a Bessel beam superposition to control the phase of an ultrafast laser beam possessing intensities sufficient to induce Kerr effect driven non-linear self-focusing. Several experimental methods were used to characterize the resulting beams and confirm the observed structures are laser air filaments.
Applied Physics Letters
Barbieri, Nicholas; Hosseinimakarem, Zahra; Lim, Khan; Durand, Magali; Baudelet, Matthieu; Johnson, Eric; and Richardson, Martin, "Helical filaments" (2014). Faculty Bibliography 2010s. 5025.