• Corpus ID: 231639193

Fast and efficient preparation of 1D chains and dense cold atomic clouds

@inproceedings{Glicenstein2021FastAE,
  title={Fast and efficient preparation of 1D chains and dense cold atomic clouds},
  author={Antoine Glicenstein and Giovanni Ferioli and Ludovic Brossard and Yvan Sortais and Daniel Barredo and Florence Nogrette and Igor Ferrier-Barbut and Antoine Browaeys},
  year={2021}
}

• A. Glicenstein, G. Ferioli, +5 authors A. Browaeys
• Published 19 January 2021
• Physics

We report the efficient and fast ( ∼ 2Hz) preparation of randomly loaded 1D chains of individual 87 Rb atoms and of dense atomic clouds trapped in optical tweezers using a new experimental platform. This platform is designed for the study of both structured and disordered atomic systems in free space. It is composed of two high-resolution optical systems perpendicular to each other, enhancing observation and manipulation capabil-ities. The setup includes a dynamically controllable telescope, which we use to vary the tweezer beam waist. A D1 Λ -enhanced gray molasses enhances the loading of the traps from a magneto-optical trap. Using these tools, we prepare chains of up to ∼ 100 atoms separated by ∼ 1µm by retro-reflecting the tweezer light, hence producing a 1D optical lattice with strong transverse confinement. Dense atomic clouds with peak densities up to n 0 ∼ 10 15 at / cm 3 are obtained by compression of an initial cloud. This high density results into interatomic distances smaller than λ / ( 2 π ) for the D2 optical transitions, making it ideal to study light-induced interactions in dense samples.