Attosecond pulse generation from aligned molecules—dynamics and propagation in H2+

Details Attosecond pulse generation from aligned molecules—dynamics and propagation in H2+ Attosecond pulse generation from aligned molecules—dynamics and propagation in H2+

Feb 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008njph...10b5033l&link_type=abstract

New Journal of Physics, Volume 10, Issue 2, pp. 025033 (2008).

Physics

12

Scientific paper

The dynamics and propagation effects in attosecond (asec) pulse generation from high-order harmonic generation (HHG) of aligned one-dimensional (1D) H2+ molecules are investigated from numerical solutions of fully coupled Maxwell and time-dependent Schrödinger equations (Maxwell-TDSEs), in the highly nonlinear nonperturbative regime of laser molecule interaction. Density, laser-phase and propagation length effects are studied on the total electric field and nonlinear polarization from the Maxwell-TDSE for intense few cycle (800 nm) laser pulses interacting with a 1D H2+ gas. We show how single and double asec pulses can be generated and propagated as a function of the phase of individual harmonics created by ultrashort intense laser pulses in aligned H2+ molecules. We find furthermore extension of maximum HHG plateaux with increasing gas pressure.

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