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

We demonstrated a large enhancement of Kerr electro-optic nonlinearitythrough cascaded Pockels effects in a domain inversion ferroelectric crystal.We designed a structure that can implement the cascaded Pockels effects andsecond-harmonic generation simultaneously. The energy coupling between thefundamental lights of different polarizations led to a large nonlinear phaseshift, and thus an effective electro-optic nonlinear refractive index. Theeffective nonlinearity can be either positive or negative, causing thesecond-harmonic spectra to move towards the coupling center, which in turn,offered us a way to measure the effective electro-optic nonlinear refractiveindex. The corresponding enhanced Kerr electro-optic nonlinearity is more thanthree orders of magnitude higher than the intrinsic value. These results open adoor to manipulate the nonlinear phase by applying external electric fieldinstead of light intensity in noncentrosymmetric crystals.

Enhanced Kerr electro-optic nonlinearity through cascaded Pockels effects