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Title: A continuous cold atomic beam interferometer

We demonstrate an atom interferometer that uses a laser-cooled continuous beam of {sup 87}Rb atoms having velocities of 10–20 m/s. With spatially separated Raman beams to coherently manipulate the atomic wave packets, Mach–Zehnder interference fringes are observed at an interference distance of 2L = 19 mm. The apparatus operates within a small enclosed area of 0.07 mm{sup 2} at a bandwidth of 190 Hz with a deduced sensitivity of 7.8×10{sup −5} rad/s/√(Hz) for rotations. Using a low-velocity continuous atomic source in an atom interferometer enables high sampling rates and bandwidths without sacrificing sensitivity and compactness, which are important for applications in real dynamic environments.
Authors:
 [1] ;  [2] ;  [2] ; ; ;  [1] ;  [2] ;  [3] ;  [2] ;  [4] ;  [1]
  1. State Key Laboratory of Precision Measurement Technology and Instruments, Tsinghua University, Beijing 100084 (China)
  2. (China)
  3. Joint Institute for Measurement Science, Tsinghua University, Beijing 100084 (China)
  4. College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan 030024 (China)
Publication Date:
OSTI Identifier:
22413223
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 117; Journal Issue: 9; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; ATOMIC BEAMS; ATOMS; INTERFERENCE; MACH-ZEHNDER INTERFEROMETER; RAMAN EFFECT; ROTATION; RUBIDIUM 87; SENSITIVITY; WAVE PACKETS