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 Plus annual

Presents the access of premium content as premium feature

Premium Content

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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

As an emerging channel resource for modern optics, big data, internet trafficand quantum technologies, twisted photons carrying orbital angular momentum(OAM) have been extended their applicable boundary in different media, such asoptical fiber and atmosphere. Due to the extreme condition of loss andpressure, underwater transmission of twisted photons has not been wellinvestigated yet. Especially, single-photon tests were all limited at a levelof a few meters, and it is in practice unclear what will happen for longertransmission distances. Here we experimentally demonstrate the transmission ofsingle-photon twisted light over an underwater channel up to 55 meters, whichreach a distance allowing potential real applications. For different order OAMstates and their superposition, a good preservation of modal structure andtopological charge are observed. Our results for the first time reveal the realtransmission performance of twisted photons in a long-distance regime,representing a step further towards OAM-based underwater quantum communication.

Underwater Transmission of High-dimensional Twisted Photons over 55 Meters