Studies with Laser Cooled Atoms and Single Molecules

Abstract

We have achieved milestones in atom interferometry. By using multiphoton Bragg diffraction to make beam splitters that transfer the momentum of up to 24 photons to the atoms, we are able to increase the signal by a factor of 12 for Mach-Zehnder or 144 for Ramsey-Borde Interferometers relative to the 2-photon beam splitters used in the best present interferometers. We are also able to run Ramsey-Borde interferometers simultaneously to suppress the influence of vibrations. Work continues to make the experimental setup reliable, as required for routine data taking and tracking down systematic effects at the 0.1 parts per billion level of precision.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2007
Accession Number
ADA474482

Entities

People

  • Steven Chu

Organizations

  • Stanford University

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Bose Einstein Condensates
  • Chemistry
  • Detection
  • Diffraction
  • Frequency
  • Laser Diodes
  • Measurement
  • Modulation
  • Molecules
  • Momentum
  • Optics
  • Photons
  • Repetition Rate
  • Scattering
  • Spectroscopy
  • Vibration
  • Waves

Fields of Study

  • Physics

Readers

  • Image Processing and Computer Vision.
  • Pulsed Power and Plasma Physics.
  • Spectroscopy.

Technology Areas

  • Directed Energy