Spin-to-orbital angular momentum conversion in semiconductor microcavities

Spin-to-orbital angular momentum conversion in semiconductor microcavities

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...

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Bibliographic Details
Main Authors: Manni, F., Lagoudakis, K. G., Paraïso, T. K., Cerna, R., Léger, Y., Liew, Timothy Chi Hin, Shelykh, I. A., Kavokin, A. V., Morier-Genoud, F., Deveaud-Plédran, B.
Other Authors: School of Physical and Mathematical Sciences
Format: Article
Language:English
Published: 2017
Subjects:
Orbital angular momentum
Semiconductor microcavities
Online Access:https://hdl.handle.net/10356/85909
http://hdl.handle.net/10220/43894
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Institution: Nanyang Technological University
Language: English
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Summary: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.

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