Emerging Beam Resonances in Atom Diffraction from a Reflection Grating

doi:https://doi.org/10.1103/PHYSREVLETT.104.240404

Title: Emerging Beam Resonances in Atom Diffraction from a Reflection Grating

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Abstract

We report on the observation of emerging beam resonances, well known as Rayleigh-Wood anomalies and threshold resonances in photon and electron diffraction, respectively, in an atom-optical diffraction experiment. Diffraction of He atom beams reflected from a blazed ruled grating at grazing incidence has been investigated. The total reflectivity of the grating as well as the intensities of the diffracted beams reveal anomalies at the Rayleigh angles of incidence, i.e., when another diffracted beam emerges parallel to the grating surface. The observed anomalies are discussed in terms of the classical wave-optical model of Rayleigh and Fano.

Authors:

Zhao, Bum Suk; Meijer, Gerard; Schoellkopf, Wieland ^[1]

Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin (Germany)

Publication Date:: 2010-06-18

OSTI Identifier:: 21410412

Resource Type:: Journal Article

Journal Name:: Physical Review Letters

Additional Journal Information:: Journal Volume: 104; Journal Issue: 24; Other Information: DOI: 10.1103/PhysRevLett.104.240404; (c) 2010 The American Physical Society; Journal ID: ISSN 0031-9007

Country of Publication:: United States

Language:: English

Subject:: 74 ATOMIC AND MOLECULAR PHYSICS; ATOMIC BEAM DIFFRACTION; ATOMIC BEAMS; ATOMS; DIFFRACTION GRATINGS; ELECTRON DIFFRACTION; HELIUM; INCIDENCE ANGLE; OPTICAL MODELS; PHOTONS; REFLECTIVITY; RESONANCE; BEAMS; BOSONS; COHERENT SCATTERING; DIFFRACTION; ELEMENTARY PARTICLES; ELEMENTS; FLUIDS; GASES; MASSLESS PARTICLES; MATHEMATICAL MODELS; NONMETALS; OPTICAL PROPERTIES; PHYSICAL PROPERTIES; RARE GASES; SCATTERING; SURFACE PROPERTIES

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                    Zhao, Bum Suk, Meijer, Gerard, and Schoellkopf, Wieland. Emerging Beam Resonances in Atom Diffraction from a Reflection Grating.  United States: N. p., 2010. 
        Web.  doi:10.1103/PHYSREVLETT.104.240404.

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                    Zhao, Bum Suk, Meijer, Gerard, & Schoellkopf, Wieland. Emerging Beam Resonances in Atom Diffraction from a Reflection Grating.  United States.  https://doi.org/10.1103/PHYSREVLETT.104.240404

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                    Zhao, Bum Suk, Meijer, Gerard, and Schoellkopf, Wieland. Fri .  
        "Emerging Beam Resonances in Atom Diffraction from a Reflection Grating".  United States.  https://doi.org/10.1103/PHYSREVLETT.104.240404.

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@article{osti_21410412,

  title        = {Emerging Beam Resonances in Atom Diffraction from a Reflection Grating},

  author       = {Zhao, Bum Suk and Meijer, Gerard and Schoellkopf, Wieland},

  abstractNote = {We report on the observation of emerging beam resonances, well known as Rayleigh-Wood anomalies and threshold resonances in photon and electron diffraction, respectively, in an atom-optical diffraction experiment. Diffraction of He atom beams reflected from a blazed ruled grating at grazing incidence has been investigated. The total reflectivity of the grating as well as the intensities of the diffracted beams reveal anomalies at the Rayleigh angles of incidence, i.e., when another diffracted beam emerges parallel to the grating surface. The observed anomalies are discussed in terms of the classical wave-optical model of Rayleigh and Fano.},

  doi          = {10.1103/PHYSREVLETT.104.240404},

  url          = {https://www.osti.gov/biblio/21410412},
  journal      = {Physical Review Letters},

  issn         = {0031-9007},

  number       = 24,

  volume       = 104,

  place        = {United States},

  year         = {2010},

  month        = {6}

}

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