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

Interactions of few-cycle terahertz pulses with the induced opticalpolarization in a quantum-well microcavity reveal that the lower and higherexciton-polariton modes together with the optically forbidden 2p-exciton stateform a unique {\Lambda}-type three-level system. Pronounced nonlinearities areobserved via time-resolved strong-terahertz and weak-optical excitationspectroscopy and explained with a fully microscopic theory. The results showthat the terahertz pulses strongly couple the exciton-polariton states to the2p-exciton state while no resonant transition between the two polariton levelsis observed.

Terahertz excitation of a coherent three-level {\Lambda}-type exciton-polariton microcavity mode