A simple imaging solution for chip-scale laser cooling

A. Bregazzi, P. F. Griffin, A. S. Arnold, D. P. Burt, G Martinez, R. Boudot, J. Kitching, E. Riis, J. P. McGilligan

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Abstract

We demonstrate a simple stacked scheme that enables absorption imaging through a hole in the surface of a grating magneto-optical trap (GMOT) chip, placed immediately below a micro-fabricated vacuum cell. The imaging scheme is capable of overcoming the reduced optical access and surface scatter that is associated with this chip-scale platform while further permitting both trapping and imaging of the atoms from a single incident laser beam. The through-hole imaging is used to characterize the impact of the reduced optical overlap volume of the GMOT in the chip-scale cell, with an outlook to an optimized atom number in low volume systems.

Original languageEnglish
Article number184002
Pages (from-to)184002
Number of pages5
JournalApplied Physics Letters
Volume119
Issue number18
DOIs
Publication statusPublished - 1 Nov 2021

Keywords

  • grating magneto-optical trap (GMOT) chip
  • vacuum cell
  • imaging scheme
  • chip-scale cell

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