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Title: Double diffraction in an atomic gravimeter

Abstract

We demonstrate the realization of a scheme for cold-atom gravimetry based on the recently demonstrated use of double-diffraction beam splitters [T. Leveque, A. Gauguet, F. Michaud, F. Pereira Dos Santos, and A. Landragin, Phys. Rev. Lett. 103, 080405 (2009)], where the use of two retro-reflected Raman beams allows symmetric diffraction in +-(Planck constant/2pi)k{sub eff} momenta. Although in principle restricted to the case of zero Doppler shift, for which the two pairs of Raman beams are simultaneously resonant, such diffraction pulses can remain efficient on atoms with nonzero velocity, such as in a gravimeter, when the frequency of one of the two Raman laser sources is modulated. Such pulses are used to realize an interferometer insensitive to laser phase noise and some of the dominant systematics. This approach reduces the technical requirements and would allow the realization of a simple atomic gravimeter. A sensitivity of 1.2x10{sup -7}g per shot is demonstrated.

Authors:
; ; ; ; ;  [1]
  1. LNE-SYRTE, Observatoire de Paris, CNRS, UPMC, 61 Avenue de l'Observatoire, F-75014 Paris (France)
Publication Date:
OSTI Identifier:
21388779
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. A; Journal Volume: 81; Journal Issue: 1; Other Information: DOI: 10.1103/PhysRevA.81.013617; (c) 2010 The American Physical Society
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 74 ATOMIC AND MOLECULAR PHYSICS; ATOMS; BEAMS; DIFFRACTION; DOPPLER EFFECT; GRAVIMETRY; INTERFEROMETERS; LASERS; NOISE; PULSES; SENSITIVITY; SYMMETRY; VELOCITY; COHERENT SCATTERING; MEASURING INSTRUMENTS; SCATTERING

Citation Formats

Malossi, N., Bodart, Q., Merlet, S., Leveque, T., Landragin, A., and Santos, F. Pereira Dos. Double diffraction in an atomic gravimeter. United States: N. p., 2010. Web. doi:10.1103/PHYSREVA.81.013617.
Malossi, N., Bodart, Q., Merlet, S., Leveque, T., Landragin, A., & Santos, F. Pereira Dos. Double diffraction in an atomic gravimeter. United States. doi:10.1103/PHYSREVA.81.013617.
Malossi, N., Bodart, Q., Merlet, S., Leveque, T., Landragin, A., and Santos, F. Pereira Dos. Fri . "Double diffraction in an atomic gravimeter". United States. doi:10.1103/PHYSREVA.81.013617.
@article{osti_21388779,
title = {Double diffraction in an atomic gravimeter},
author = {Malossi, N. and Bodart, Q. and Merlet, S. and Leveque, T. and Landragin, A. and Santos, F. Pereira Dos},
abstractNote = {We demonstrate the realization of a scheme for cold-atom gravimetry based on the recently demonstrated use of double-diffraction beam splitters [T. Leveque, A. Gauguet, F. Michaud, F. Pereira Dos Santos, and A. Landragin, Phys. Rev. Lett. 103, 080405 (2009)], where the use of two retro-reflected Raman beams allows symmetric diffraction in +-(Planck constant/2pi)k{sub eff} momenta. Although in principle restricted to the case of zero Doppler shift, for which the two pairs of Raman beams are simultaneously resonant, such diffraction pulses can remain efficient on atoms with nonzero velocity, such as in a gravimeter, when the frequency of one of the two Raman laser sources is modulated. Such pulses are used to realize an interferometer insensitive to laser phase noise and some of the dominant systematics. This approach reduces the technical requirements and would allow the realization of a simple atomic gravimeter. A sensitivity of 1.2x10{sup -7}g per shot is demonstrated.},
doi = {10.1103/PHYSREVA.81.013617},
journal = {Physical Review. A},
number = 1,
volume = 81,
place = {United States},
year = {Fri Jan 15 00:00:00 EST 2010},
month = {Fri Jan 15 00:00:00 EST 2010}
}