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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

When light is confined in all three directions and in dimensions of the orderof the light wavelength, full discretization of the photon spectra anddistinctive phenomena occur, the Purcell effect and the inhibition of emissionof atoms being two paradigmatic examples. Diverse solid-state devices thatconfine light in all three dimensions have been developed and applied.Typically the confinement volume, operating wavelength, and quality factor ofthese resonators are set by construction, and small variations of thesecharacteristics with external perturbations are targeted for applicationsincluding light modulation and control. Here we describe full 3D lighttrapping, that is set and tuned by laser excitation in an all-optical scheme.The proposed device is based on a planar distributed Bragg reflector GaAssemiconductor microcavity operated at room temperature. Lateral confinement isgenerated with an attractive effective photonic potential tailored by theincrease in the cavity spacer refractive index, induced by carriersphotoexcited by a focused laser. Strong three dimensional trapping of light isevidenced by the laser-induced changes on the spectral, spatial, and k-spacedistribution of the emission. The dynamics of the laser induced photonicpotential is studied using modulated optical excitation, highlighting thecentral role of thermal effects at the origin of the observed phenomena.

Three dimensional trapping of light with light in semiconductor planar microcavities