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Self-focusing in air with phase-stabilized few-cycle light pulses
2010
Optics Letters
We investigate the nonlinear optical phenomenon of self-focusing in air with phase-stabilized few-cycle light pulses. This investigation looks at the role of the carrier-envelope phase by observing a filament in air, a nonlinear phenomenon that can be utilized for few-cycle pulse compression [Appl. Phys. B 79, 673 (2004) ]. We were able to measure the critical power for self-focusing in air to be 18± 1 GW for a 6.3 fs pulse centered at 800 nm. Using this value and a basic first-order theory, we
doi:10.1364/ol.35.001653
pmid:20479839
fatcat:wfkbtjiaybabjiplunw4q5jnze