English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Tools annual

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Optical activity, the power of a medium to rotate the polarization of a lightbeam, has contributed significantly to molecular structure assessments instereochemistry, biomolecular science and crystallography. Thus far, it iscommonly believed that optical activity is manifested only in the chiral mediawhich can give rise to circular birefringence of light. Here, we experimentallydemonstrate that free space can also support the implementation ofnon-reciprocal optical activity with Bessel beams by spin-orbital interaction.Specifically, non-diffractive optically active beams are realized, with theiroptical rotatory power readily controlled by simple optical elements. We showthat such free-space optical activity can be exploited to form non-reciprocaloptical components such as polarization rotators, isolators, and circulators.Our results may bring about new possibilities of media-independent opticalactivity to other transverse waves ranging from radio to optical frequencies.

Optically active beams: non-reciprocal optical activity in free space induced by spin-orbital interaction of light