alexa Photon recoil momentum in dispersive media.
Engineering

Engineering

Journal of Aeronautics & Aerospace Engineering

Author(s): Campbell GK, Leanhardt AE, Mun J, Boyd M, Streed EW,

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Abstract A systematic shift of the photon recoil momentum due to the index of refraction of a dilute gas of atoms has been observed. The recoil frequency was determined with a two-pulse light grating interferometer using near-resonant laser light. The results show that the recoil momentum of atoms caused by the absorption of a photon is n variant Planck's k, where n is the index of refraction of the gas and k is the vacuum wave vector of the photon. This systematic effect must be accounted for in high-precision atom interferometry with light gratings. This article was published in Phys Rev Lett and referenced in Journal of Aeronautics & Aerospace Engineering

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