Atomic Raman scattering: Third-order diffraction in a double geometry

Abstract

In a retroreflective scheme atomic Raman diffraction adopts some of the properties of Bragg diffraction due to additional couplings to off-resonant momenta. As a consequence, double Raman diffraction has to be performed in a Bragg-type regime. Taking advantage of this regime, double Raman allows for resonant higher-order diffraction. We study theoretically the case of third-order diffraction and compare it to first order as well as a sequence of first-order pulses giving rise to the same momentum transfer as the third-order pulse. In fact, third-order diffraction constitutes a competitive tool for the diffraction of ultracold atoms and interferometry based on large momentum transfer since it allows to reduce the complexity of the experiment as well as the total duration of the diffraction process compared to a sequence.

15 pages, 14 figures

References in corpus (12)

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Cited by in corpus (6)

• Bragg-diffraction-induced imperfections of the signal in retroreflective atom interferometers
• Aberrations in (3+1)D Bragg diffraction using pulsed Gaussian laser beams
• Dichroic mirror pulses for optimized higher-order atomic Bragg diffraction
• Atom interferometry with quantized light pulses
• Bose-Einstein condensates in microgravity and fundamental tests of gravity
• Sequantial large momentum transfer exploiting rectangular Raman pulses