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

Non-resonant second harmonic generation phase and amplitude measurementsobtained from the silica:water interface at varying pH and 0.5 M ionic strengthpoint to the existence of a nonlinear susceptibility term, which we callchi(3)X, that is associated with a 90 deg phase shift. Including thiscontribution in a model for the total effective second-order nonlinearsusceptibility produces reasonable point estimates for interfacial potentialsand second-order nonlinear susceptibilities when chi(3)Xis about 1.5 timeschi(3)water. A model without this term and containing only traditional chi(2)and chi(3) terms cannot recapitulate the experimental data. The new model alsoprovides a demonstrated utility for distinguishing apparent differences in thesecond-order nonlinear susceptibility when the electrolyte is NaCl vs MgSO4,pointing to the possibility of using HD-SHG to investigate ion-specificity ininterfacial processes.

A New Imaginary Term in the 2nd Order Nonlinear Susceptibility from Charged Interfaces