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Spin-to-orbital angular momentum conversion in semiconductor microcavities

机译:半导体微腔中的自旋至轨道角动量转换

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摘要

We experimentally demonstrate a technique for the generation of optical beams carrying orbital angular momentum using a planar semiconductor microcavity. Despite being isotropic systems with no structural gyrotropy, semiconductor microcavities, because of the transverse-electric-transverse-magnetic polarization splitting that they feature, allow for the conversion of the circular polarization of an incoming laser beam into the orbital angular momentum of the transmitted light field. The process implies the formation of topological entities, a pair of optical vortices, in the intracavity field.
机译:我们通过实验证明了一种使用平面半导体微腔产生带有轨道角动量的光束的技术。尽管是没有结构回旋的各向同性系统,但由于半导体微腔具有横向电-横向-磁偏振分裂,因此它们可以将入射激光束的圆偏振转换为透射光的轨道角动量领域。该过程意味着在腔内场中形成拓扑实体,即一对光学涡旋。

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  • 来源
    《Physical review》 |2011年第24期|p.241307.1-241307.4|共4页
  • 作者单位

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f TheB.83retical Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015 Lausanne, Switzerland;

    Science Institute, University B.83f Iceland, Dunhagi-3, IS-107, Reykjavik, Iceland;

    LabB.83ratB.83ire Charles CB.83ulB.83mb UMR 5221 CNRS-UM2, Universite MB.83ntpellier 2, FR-34095 MB.83ntpellier Cedex 5, France,Physics and AstrB.83nB.83my SchB.83B.83l, University B.83f SB.83uthamptB.83n, Highfield, SB.83uthamptB.83n, SB.83I 7IB], United KingdB.83m;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

    Institute B.83f CB.83ndensed Matter Physics, EcB.83le PB.83lytechnique Federate de Lausanne (EPFL), CH-1015, Lausanne, Switzerland;

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  • 正文语种 eng
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  • 关键词

    optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures; wave optics; optical elements, devices, and systems;

    机译:低维;介观和纳米级材料和结构的光学特性;波光学光学元件;设备和系统;

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