Title :
Attosecond pulse generation by a two-color laser field
Author :
Taranukhin, V.D. ; Zheng, Jiangang
Author_Institution :
Dept. of Phys., M.V. Lomonosov Moscow State Univ.
Abstract :
We suggest a new method for attosecond electromagnetic pulse generation. The key idea consists in using a two-color laser pump in the technique of "high-order harmonic generation": linearly polarized low-frequency field and circularly polarized high-frequency field. We found conditions and specific parameters of two-color pump, for which the duration of recombination emission can be less than 10 attoseconds. Our numerical simulations show that with pump radiation of relativistic intensity and due to effect of "magnetic" focusing it is possible to get 20 as pulses of recombination radiation
Keywords :
laser beams; light polarisation; optical harmonic generation; optical pulse generation; optical pumping; attosecond electromagnetic pulse generation; circularly polarized high-frequency field; high-order harmonic generation; linearly polarized low-frequency field; magnetic focusing; pump radiation; recombination emission; relativistic intensity; two-color laser field; Electromagnetic wave polarization; Electrons; Ionization; Kinetic energy; Laser excitation; Laser theory; Optical pulse generation; Pulse generation; Pump lasers; Spontaneous emission;
Conference_Titel :
Lasers and Electro-Optics Europe, 2005. CLEO/Europe. 2005 Conference on
Conference_Location :
Munich
Print_ISBN :
0-7803-8974-3
DOI :
10.1109/CLEOE.2005.1568465
