%0 Journal Article %1 Liu2008 %A Liu, Y. Q. %A Tschuch, S. %A Rudenko, A. %A Durr, M. %A Siegel, M. %A Morgner, U. %A Moshammer, R. %A Ullrich, J. %D 2008 %J Physical Review Letters %K ati atoms double-ionization excitation helium ion laser-pulses nonsequential spectra %N 5 %P - %T Strong-field double ionization of Ar below the recollision threshold %U /brokenurl#<Go to ISI>://000258384700014 %V 101 %X Nonsequential double ionization of Ar by 45 fs laser pulses (800 nm) at (4-7) x 10(13) W/cm(2) was explored in fully differential measurements. Well below the field-modified recollision threshold we enter the multiphoton regime. Strongly correlated back-to-back emission of the electrons along the polarization direction is observed to dominate in striking contrast to all previous data. No effect of Coulomb repulsion can be found, the predicted cutoff in the sum-energy spectra of two emitted electrons is confirmed, and the potential importance of multiple recollisions is discussed.

@article{Liu2008, __markedentry = {[xinguo:]}, abstract = {Nonsequential double ionization of Ar by 45 fs laser pulses (800 nm) at (4-7) x 10(13) W/cm(2) was explored in fully differential measurements. Well below the field-modified recollision threshold we enter the multiphoton regime. Strongly correlated back-to-back emission of the electrons along the polarization direction is observed to dominate in striking contrast to all previous data. No effect of Coulomb repulsion can be found, the predicted cutoff in the sum-energy spectra of two emitted electrons is confirmed, and the potential importance of multiple recollisions is discussed.}, added-at = {2011-09-14T10:31:46.000+0200}, author = {Liu, Y. Q. and Tschuch, S. and Rudenko, A. and Durr, M. and Siegel, M. and Morgner, U. and Moshammer, R. and Ullrich, J.}, biburl = {https://www.bibsonomy.org/bibtex/21577cbd9911267b3487448a51b00bd96/xinguo1}, endnotereftype = {Journal Article}, interhash = {1a158c1a2be2b0b554994192e2b59769}, intrahash = {1577cbd9911267b3487448a51b00bd96}, issn = {0031-9007}, journal = {Physical Review Letters}, keywords = {ati atoms double-ionization excitation helium ion laser-pulses nonsequential spectra}, month = {Aug 1}, note = {336SK Times Cited:3 Cited References Count:31}, number = 5, owner = {xinguo}, pages = {-}, shorttitle = {Strong-field double ionization of Ar below the recollision threshold}, timestamp = {2011-09-14T10:31:46.000+0200}, title = {Strong-field double ionization of Ar below the recollision threshold}, url = {/brokenurl#<Go to ISI>://000258384700014}, volume = 101, year = 2008 }