Isolated attosecond pulses with continuum spectra extending below 15 eV are used to probe the sub-cycle energy shifts and splitting of helium excited states. Additionally, new absorption features appear far from the 1snp absorption lines. © OSA 2013.
|Title of host publication||CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013|
|Publication status||Published - 2013|