PMID- 33379777 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20201231 IS - 1094-4087 (Electronic) IS - 1094-4087 (Linking) VI - 28 IP - 24 DP - 2020 Nov 23 TI - Ultraprecise Rydberg atomic localization using optical vortices. PG - 36936-36952 LID - 10.1364/OE.411130 [doi] AB - We propose a robust localization of the highly-excited Rydberg atoms interacting with doughnut-shaped optical vortices. Compared with the earlier standing-wave (SW)-based localization methods, a vortex beam can provide an ultraprecise two-dimensional localization solely in the zero-intensity center, within a confined excitation region down to the nanometer scale. We show that the presence of the Rydberg-Rydberg interaction permits counter-intuitively much stronger confinement towards a high spatial resolution when it is partially compensated by a suitable detuning. In addition, applying an auxiliary SW modulation to the two-photon detuning allows a three-dimensional confinement of Rydberg atoms. In this case, the vortex field provides a transverse confinement, while the SW modulation of the two-photon detuning localizes the Rydberg atoms longitudinally. To develop a new subwavelength localization technique, our results pave a path one step closer to reducing excitation volumes to the level of a few nanometers, representing a feasible implementation for the future experimental applications. FAU - Jia, Ning AU - Jia N FAU - Qian, Jing AU - Qian J FAU - Kirova, Teodora AU - Kirova T FAU - Juzeliunas, Gediminas AU - Juzeliunas G FAU - Reza Hamedi, Hamid AU - Reza Hamedi H LA - eng PT - Journal Article PL - United States TA - Opt Express JT - Optics express JID - 101137103 SB - IM EDAT- 2021/01/01 06:00 MHDA- 2021/01/01 06:01 CRDT- 2020/12/31 01:04 PHST- 2020/12/31 01:04 [entrez] PHST- 2021/01/01 06:00 [pubmed] PHST- 2021/01/01 06:01 [medline] AID - 442829 [pii] AID - 10.1364/OE.411130 [doi] PST - ppublish SO - Opt Express. 2020 Nov 23;28(24):36936-36952. doi: 10.1364/OE.411130.