A simple circular phase mask written on the driving laser beam significantly increases pointing stability and spectral coverage of femtosecond optical filaments. We compare our method to standard optical filamentation and the hollow-core fiber technique.
© 2006 Optical Society of America
L. Gallmann, T. Pfeifer, M. J. Abel, D. M. Neumark, and S. R. Leone, "Control of Optical Filaments with Simple Phase Masks and its Application to Few-Cycle Pulse Generation," in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, Technical Digest (CD) (Optical Society of America, 2006), paper CThV3.
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