TY - GEN
T1 - Nonlinear propagation and filamentation of intense Airy beams in transparent media
AU - Couairon, Arnaud
AU - Lotti, Antonio
AU - Panagiotopoulos, Paris
AU - Abdollahpour, Daryoush
AU - Faccio, Daniele
AU - Papazoglou, Dimitrios G.
AU - Tzortzakis, Stelios
PY - 2012/6/20
Y1 - 2012/6/20
N2 - We investigate the nonlinear propagation of intense Airy beams forming filaments in transparent media. We demonstrate the existence of stationary nonlinear Airy beams in a planar geometry. These beams preserve the intensity profile and the transverse acceleration of the Airy peak. We show that stationary propagation is sustained by a continuous energy flux to the main Airy lobe from its neighbors. For powers in the main Airy lobe exceeding a certain threshold, this stationary propagation regime becomes unstable. We extend our results to the 2-dimensional case: Airy beams with high powers in the main lobe reshape into a multifilamentary pattern induced by Kerr and multiphoton nonlinearities. The nucleation of new filaments and their interaction, affects the acceleration of the main Airy lobes. Experiments performed in water corroborate the existence of these two regimes.
AB - We investigate the nonlinear propagation of intense Airy beams forming filaments in transparent media. We demonstrate the existence of stationary nonlinear Airy beams in a planar geometry. These beams preserve the intensity profile and the transverse acceleration of the Airy peak. We show that stationary propagation is sustained by a continuous energy flux to the main Airy lobe from its neighbors. For powers in the main Airy lobe exceeding a certain threshold, this stationary propagation regime becomes unstable. We extend our results to the 2-dimensional case: Airy beams with high powers in the main lobe reshape into a multifilamentary pattern induced by Kerr and multiphoton nonlinearities. The nucleation of new filaments and their interaction, affects the acceleration of the main Airy lobes. Experiments performed in water corroborate the existence of these two regimes.
KW - Airy beams
KW - Ultrashort laser pulse filamentation
UR - https://www.scopus.com/pages/publications/84862287731
U2 - 10.1117/12.922476
DO - 10.1117/12.922476
M3 - Conference contribution
AN - SCOPUS:84862287731
SN - 9780819491268
T3 - Proceedings of SPIE - The International Society for Optical Engineering
BT - Nonlinear Optics and Applications VI
T2 - Nonlinear Optics and Applications VI
Y2 - 16 April 2012 through 18 April 2012
ER -