High-order harmonics generation and attosecond soft x-ray pulses

V. T. Platonenko; V. V. Strelkov

doi:10.1117/12.341465

5 March 1999 High-order harmonics generation and attosecond soft x-ray pulses

V. T. Platonenko, V. V. Strelkov

Proceedings Volume 3735, ICONO '98: Ultrafast Phenomena and Interaction of Superstrong Laser Fields with Matter: Nonlinear Optics and High-Field Physics; (1999) https://doi.org/10.1117/12.341465
Event: ICONO '98: Laser Spectroscopy and Optical Diagnostics: Novel Trends and Applications in Laser Chemistry, Biophysics, and Biomedicine, 1998, Moscow, Russian Federation

Abstract

The problem of obtaining a single attosecond pulse using high- order harmonics generation is under consideration. A method for producing an exciting light pulse with a time dependent degree of ellipticity from one-frequency linearly polarized laser pulse by means of linear optics is suggested. The whole of the field generated by limited beam of this light in gas target is calculated in the far zone. For this calculation we use an original method based on time approach of a theory of high-order harmonic generation. Suppressing low-frequency part of the spectrum (i.e. extracting the high-frequency part) by pinholes is simulated. Contrasted and intense (focused) single attosecond soft X-ray pulses are calculated. Also the generation of attosecond pulse by linearly polarized light with pulse duration close to one optical cycle was simulated.

Citation Download Citation

V. T. Platonenko and V. V. Strelkov "High-order harmonics generation and attosecond soft x-ray pulses", Proc. SPIE 3735, ICONO '98: Ultrafast Phenomena and Interaction of Superstrong Laser Fields with Matter: Nonlinear Optics and High-Field Physics, (5 March 1999); https://doi.org/10.1117/12.341465

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