Uncovering multiple orbitals influence in high harmonic generation from aligned N${}_2$

Anh-Thu Le, R. R. Lucchese, C. D. Lin

Recent measurements on high-order harmonic generation (HHG) from N${}_2$ aligned perpendicular to the driving laser polarization [B. K. McFarland {\it el al}, Science {\bf 322}, 1232…