Spectral shaping of attosecond pulses using two-colour laser fields Export

@article{citeulike:3172924, abstract = {We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15\% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible.}, author = {Mansten, E. and Dahlstrom, J. M. and Johnsson, P. and Swoboda, M. and L'Huillier, A. and Mauritsson, J.}, citeulike-article-id = {3172924}, citeulike-linkout-0 = {http://dx.doi.org/10.1088/1367-2630/10/8/083041}, doi = {10.1088/1367-2630/10/8/083041}, issn = {1367-2630}, journal = {New Journal of Physics}, keywords = {attosecond, hhg, physics, pulse-shaping, ultrafast}, month = {August}, number = {8}, pages = {083041+}, posted-at = {2008-09-05 11:13:06}, priority = {2}, publisher = {IOP Publishing}, title = {Spectral shaping of attosecond pulses using two-colour laser fields}, url = {http://dx.doi.org/10.1088/1367-2630/10/8/083041}, volume = {10}, year = {2008} }

TY - JOUR ID - citeulike:3172924 L3 - citeulike-article-id:3172924 N2 - We use a strong two-colour laser field composed of the fundamental (800 nm) and the second harmonic (400 nm) of an infrared (IR) laser field to generate attosecond pulses with controlled spectral and temporal properties. With a second-harmonic intensity equal to 15% of the IR intensity the second-harmonic field is strong enough to significantly alter and control the electron trajectories in the generation process. This enables us to tune the central photon energy of the attosecond pulses by changing the phase difference between the IR and the second-harmonic fields. In the time domain the radiation is emitted as a sequence of pulses separated by a full IR cycle. We also perform calculations showing that the effect of even stronger second-harmonic fields leads to an extended tunable range under conditions that are experimentally feasible. IS - 8 JF - New Journal of Physics SN - 1367-2630 TI - Spectral shaping of attosecond pulses using two-colour laser fields PB - IOP Publishing VL - 10 SP - 083041 KW - attosecond KW - hhg KW - physics KW - pulse-shaping KW - ultrafast AU - Mansten, E AU - Dahlstrom, JM AU - Johnsson, P AU - Swoboda, M AU - L'Huillier, A AU - Mauritsson, J PY - 2008/08// UR - http://dx.doi.org/10.1088/1367-2630/10/8/083041 ER -