Single-shot reconstruction of the density profile of a dense atomic gas

Year: 2020

Authors: Mordini C., Trypogeorgos D., Wolswijk L., Lamporesi G., Ferrari G.

Autors Affiliation: Univ Trento, INO CNR BEC Ctr, I-38123 Povo, Italy; Univ Trento, Dipartimento Fis, I-38123 Povo, Italy; Ist Nazl Fis Nucl, Trento Inst Fundamental Phys & Applicat, I-38123 Povo, Italy.

Abstract: Partial transfer absorption imaging (PTAI) of ultracold atoms allows for repeated and minimally-destructive measurements of an atomic ensemble. Here, we present a reconstruction technique based on PTAI that can be used to piece together the non-uniform spatial profile of high-density atomic samples using multiple measurements. We achieved a thirty-fold increase of the effective dynamic range of our imaging, and were able to image otherwise saturated samples with unprecedented accuracy of both low- and high-density features.

Journal/Review: OPTICS EXPRESS

Volume: 28 (20)      Pages from: 29408  to: 29418

More Information: NAQUAS project of Horizon 2020 Framework Programme QuantERA ERA-NET Cofund in Quantum Technologies (Grant Agreement No. 731473); Provincia Autonoma di Trento; FISh project of INFN.
KeyWords: Atomic ensembles, Image processing; Imaging techniques; Magnetic fields; Reconstruction algorithms; Refractive index; Image reconstruction; Dense gas
DOI: 10.1364/OE.397567

Citations: 2
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