Grating chips for quantum technologies

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We have laser cooled3x10^6 87Rb atoms to 3uK in a micro-fabricated grating magneto-optical trap (GMOT), enabling future mass-deployment in highly accurate compact quantum sensors. We magnetically trap the atoms, and use Larmor spin precession for magnetic sensing in the vicinity of the atomic sample. Finally, we demonstrate an array of magneto-optical traps with a single laser beam, which will be utilised for future cold atom gradiometry.
Original languageEnglish
Article number384
Number of pages7
JournalScientific Reports
Publication statusPublished - 24 Mar 2017


  • laser cooling
  • micro-fabrication
  • grating magneto-optical traps
  • quantum sensors
  • Larmor spin precession
  • magnetic sensing
  • metrology


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