Theoretical and experimental study of the Bragg scattering of atoms from a standing light wave

Giltner, David M.; McGowan, R.W.; Lee, Siu Au

doi:10.1103/physreva.52.3966

Cited by 127 publications

(120 citation statements)

References 14 publications

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“…One example is the case when the laser is tuned to resonance with an atomic transition. However, often multi-photon processes, like Raman transitions [28] and Bragg scattering [29], can also be described as an effective two-level system.…”

Section: Frameworkmentioning

confidence: 99%

Initial wavefunction dependence on atom interferometry phases

Jansen

Leeuwen

2008

Appl. Phys. B

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In this paper we present a mathematical procedure to analytically calculate the output signal of a pulsed atom interferometer in an inertial field. Using the wellknown ABCDξ method we take into account the full wave dynamics of the atoms with a first order treatment of the wavefront distortion by the laser pulses. Using a numerical example we study the effect of both the length of the beam splitting laser pulses and of the width of the initial spatial distribution of the atoms. First, we find that in a general inertial field the interferometer only has a limited window in terms of the initial width (centered around 100 µm in the example calculation) in which interference fringes are visible at all. This effect is caused by the inevitable statistical spread in atomic parameters, such as initial position and momentum, and the dependence of the interferometer phase on these. In the optimum case, the useful range of the initial width is formed by the range in which both the spatial distribution and the diffraction limited momentum spread are small enough to avoid large phase differences over the atomic wavefunction. As a second result we find that the interferometer phase depends strongly on the length of the laser pulses and, to a smaller extent, on the initial width of the atomic cloud. This spatial dependency is relatively small (∼10 −5 rad) and justifies semiclassical approximations, as used in other calculations, for most experiments.

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Section: Frameworkmentioning

confidence: 99%

Initial wavefunction dependence on atom interferometry phases

Jansen

Leeuwen

2008

Appl. Phys. B

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“…This expression is fully analogous to the effective Rabi frequency for a resonant multiphoton transition, with non-resonant intermediate states [15,16].…”

Section: Standing-wave Diffraction Of Atomsmentioning

confidence: 99%

Analogy between a two-well Bose-Einstein condensate and atom diffraction

Haroutyunyan

Nienhuis

2003

Phys. Rev. A

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“…The grating period is equal to half the laser wavelength, which must be chosen very close to a resonance transition of the atom, so that diffraction can be observed with modest laser power densities. With sufficient laser power densities, diffraction orders higher than the first one can be easily observed [29,30,31].…”

Section: B Our Main Choicesmentioning

confidence: 99%

Lithium atom interferometer using laser diffraction: description and experiments

Miffre

Jacquey²,

Büchner³

et al. 2005

Eur. Phys. J. D

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We have built and operated an atom interferometer of the Mach-Zehnder type. The atomic wave is a supersonic beam of lithium seeded in argon and the mirrors and beam-splitters for the atomic wave are based on elastic Bragg diffraction on laser standing waves at λ = 671 nm. We give here a detailed description of our experimental setup and of the procedures used to align its components. We then present experimental signals, exhibiting atomic interference effects with a very high visibility, up to 84.5 ± 1 %. We describe a series of experiments testing the sensitivity of the fringe visibility to the main alignment defects and to the magnetic field gradient.

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Theoretical and experimental study of the Bragg scattering of atoms from a standing light wave

Cited by 127 publications

References 14 publications

Initial wavefunction dependence on atom interferometry phases

Initial wavefunction dependence on atom interferometry phases

Analogy between a two-well Bose-Einstein condensate and atom diffraction

Lithium atom interferometer using laser diffraction: description and experiments

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