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

Surface-phonon polaritons (SPhPs) are attractive alternatives to far-infraredplasmonics for sub-diffractional confinement of light. Localized SPhPresonances in semiconductor nanoresonators are very narrow, but that linewidthand the limited extent of the Reststrahlen band inherently limit spectralcoverage. To address this limitation, we report active tuning of SPhPresonances in InP and 4H-SiC by photoinjecting free carriers into thenanoresonators, taking advantage of the coupling between the carrier plasma andoptical phonons to blue-shift SPhP resonances. We demonstrate state-of-the-arttuning figures of merit upon continuous-wave (CW) excitation (in InP) or pulsedexcitation (in 4H-SiC). Lifetime effects cause the tuning to saturate in InP,and carrier-redistribution leads to rapid (<50 ps) recovery of the tuning in4H-SiC. This work opens the path toward actively tuned nanophotonic devices,such as modulators and beacons, in the infrared and identifies importantimplications of coupling between electronic and photonic excitations.

Active Tuning of Surface Phonon Polariton Resonances via Carrier Photoinjection