Self-compression of soliton-like laser pulses in the process of self-focusing
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چکیده
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15 صفحه اولSelf-focusing Distance of Very High Power Laser Pulses.
We show numerically for continuous-wave beams and experimentally for femtosecond pulses propagating in air, that the collapse distance of intense laser beams in a bulk Kerr medium scales as 1/P;1/2 for input powers P that are moderately above the critical power for self focusing, but that at higher powers the collapse distance scales as 1/P.
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As lasers become progressively higher in power, optical damage thresholds will become a limiting factor. Using the nonlinear optics of plasma may be a way to circumvent these limits. Here, we present a new self-compression mechanism for high-power, femtosecond laser pulses based on geometrical focusing and three dimensional spatiotemporal reshaping in an ionizing plasma. By propagating tightly ...
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ژورنال
عنوان ژورنال: Journal of Optics
سال: 2017
ISSN: 2040-8978,2040-8986
DOI: 10.1088/2040-8986/aa792e