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Spin-orbit coupling of light in asymmetric microcavities.

ABSTRACT: When spinning particles, such as electrons and photons, undergo spin-orbit coupling, they can acquire an extra phase in addition to the well-known dynamical phase. This extra phase is called the geometric phase (also known as the Berry phase), which plays an important role in a startling variety of physical contexts such as in photonics, condensed matter, high-energy and space physics. The geometric phase was originally discussed for a cyclically evolving physical system with an Abelian evolution, and was later generalized to non-cyclic and non-Abelian cases, which are the most interesting fundamental subjects in this area and indicate promising applications in various fields. Here, we enable optical spin-orbit coupling in asymmetric microcavities and experimentally observe a non-cyclic optical geometric phase acquired in a non-Abelian evolution. Our work is relevant to fundamental studies and implies promising applications by manipulating photons in on-chip quantum devices.

SUBMITTER: Ma LB

PROVIDER: S-EPMC4802038 | biostudies-literature | 2016 Mar

REPOSITORIES: biostudies-literature

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Spin-orbit coupling of light in asymmetric microcavities.

Ma L B LB Li S L SL Fomin V M VM Hentschel M M Götte J B JB Yin Y Y Jorgensen M R MR Schmidt O G OG

Nature communications 20160318

When spinning particles, such as electrons and photons, undergo spin-orbit coupling, they can acquire an extra phase in addition to the well-known dynamical phase. This extra phase is called the geometric phase (also known as the Berry phase), which plays an important role in a startling variety of physical contexts such as in photonics, condensed matter, high-energy and space physics. The geometric phase was originally discussed for a cyclically evolving physical system with an Abelian evolutio ...[more]

PMID: 26987401

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