简介：Inaccordancewithnonperturbativequantumscatteringtheory,weinvestigatephotoelectronangulardistributions(PADs)fromabove-thresholddetachment(ATD)ofnegativeionsirradiatedbycircularlypolarizedfew-cyclelaserfields.Electronsejectedonthepolarizationplanedemonstratedistinctanisotropiesinangulardistributionswhichdistinctlyvarywiththecarrier-envelope(CE)phase.Theanisotropyiscausedbyinterferencebetweentransitionchannels;italsodependsstronglyonlaserfrequency,pulseduration,andkineticenergyofphotoelectrons.Optimalemissionofphotoelectrons,whichvarieswithCEphase,makesitpossibletocontrolphotoelectronmotion.

简介：Intense-laser-inducedabove-thresholdionizationofaboundelectronintocontinuumstateswithlowenergyisinvestigatedinthecontextofthestrong-fieldapproximationthatallowsforoneactofrescatteringoftherevisitingelectron.Thequantumorbitsforforwardandbackwardscatteringareevaluatedandgeneralizedtoarbitraryscatteringangles.Thevelocitymapoftheliberatedelectronexhibitsthewell-knownlow-energystructureaswellasotherfeaturesoffthepolarizationaxis.