摘要
Conventionalperiodicstructuresusuallyhavenontunablerefractiveindicesandthusleadtoimmutablephotonicbandgaps.Aperiodicstructurecreatedinanultracoldatomsensemblebyexternallycontrolledlightcanovercomethisdisadvantageandenablelotsofpromisingapplications.Here,twonoveltypesofopticallyinducedsquarelattices,i.e.,theamplitudeandphaselattices,areproposedinanultracoldatomsensemblebyinterferingfourordinaryplanewavesunderdifferentparameterconditions.Wedemonstratethatinthefar-fieldregime,theatomicamplitudelatticewithhightransmissivitybehavessimilarlytoanidealpuresinusoidalamplitudelattice,whereastheatomicphaselatticescapableofproducingphaseexcursionacrossaweakprobebeamalongwithhightransmissivityremainsequallyideal.Moreover,weidentifythatthequalityofTalbotimagingaboutaphaselatticeisgreatlyimprovedwhencomparedwithanamplitudelattice.Suchanatomiclatticecouldfindapplicationsinallopticalswitchingatthefewphotonslevelandpavesthewayforimagingultracoldatomsormoleculesbothinthenear-fieldandinthefar-fieldwithanondestructiveandlenslessapproach.
出版日期
2017年06月16日（中国期刊网平台首次上网日期，不代表论文的发表时间）
