Abstract
We report on the postfilamentation behavior of a Stokes pulse created from intense and collimated ultrashort pulses propagating in air. A systematic analysis of the pulse propagation revealed that the redshifted Raman pulse produced during filamentation had a larger divergence than the postfilamentation intense pump pulse. Also, the analysis of the far-field Stokes transverse ring revealed that the intensity in this ionization-free light channel is still sufficiently high to induce stimulated Raman scattering after ionization had ended. This behavior further extends the potential of filamentation to remotely induce third-order nonlinearities.
© 2011 Optical Society of America
Full Article | PDF ArticleMore Like This
Dmitry V. Apeksimov, Yury E. Geints, Victor K. Oshlakov, and Aleksey V. Petrov
Appl. Opt. 62(24) 6401-6406 (2023)
Emilia Schulz, Daniel S. Steingrube, Thomas Binhammer, Mette B. Gaarde, Arnaud Couairon, Uwe Morgner, and Milutin Kovačev
Opt. Express 19(20) 19495-19507 (2011)
Haitao Wang, Chengyu Fan, Pengfei Zhang, Chunhong Qiao, Jinghui Zhang, and Huimin Ma
J. Opt. Soc. Am. B 28(9) 2081-2086 (2011)