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

Quantum emitters in confined arrays exhibit geometry dependent collectivedynamics. In particular, nanoscopic regular polygon-shaped arrays can possesssub-radiant states with an exciton lifetime growing exponentially with emitternumber. We show that by placing an extra resonant absorptive dipole at the ringcenter, such a structure becomes a highly efficient single-photon absorber withtailorable frequency. Interestingly, for exactly nine emitters in a nonagon, asit appears in a common biological light-harvesting complex (LHC2), we find adistinct minimum for its most dark state decay rate and a maximum of theeffective absorption cross-section, surpassing that for a single absorptiveemitter. The origin of this optimum for nine emitters can be geometricallytraced to the fact that the sum of coupling strengths of a single ring emitterto all others including the center ring closely matches the coupling of thecenter to all ring emitters. The emerging dark collective eigenstate hasdominant center occupation facilitating efficient energy absorption and fasttransport. The resonance frequency can be tuned via ring size and dipolepolarization. In analogy to parabolic antennas, the ring concentrates theincoming radiation at the center without being significantly excited, whichminimizes transport loss and time.

Efficient frequency-selective single-photon antennas based on a bio-inspired nano-scale atomic ring design with 9-fold symmetry