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

Optical second harmonic generation (SHG) is a nonlinear optical effect widelyused for nonlinear optical microscopy and laser frequency conversion.Closed-form analytical solution of the nonlinear optical responses is essentialfor evaluating the optical responses of new materials whose optical propertiesare unknown a priori. A recent open-source code, SHAARP(si), can provide suchclosed form solutions for crystals with arbitrary symmetries, orientations, andanisotropic properties at a single interface. However, optical components areoften in the form of slabs, thin films on substrates, and multilayerheterostructures with multiple reflections of both the fundamental and up toten different SHG waves at each interface, adding significant complexity. Manyapproximations have therefore been employed in the existing analyticalapproaches, such as slowly varying approximation, weak reflection of thenonlinear polarization, transparent medium, high crystallographic symmetry,Kleinman symmetry, easy crystal orientation along a high-symmetry direction,phase matching conditions and negligible interference among nonlinear waves,which may lead to large errors in the reported material properties. To avoidthese approximations, we have developed an open-source package named SecondHarmonic Analysis of Anisotropic Rotational Polarimetry in Multilayers(SHAARP(ml)). The reliability and accuracy are established by experimentallybenchmarking with both the SHG polarimetry and Maker fringes predicted from thepackage using standard materials.

Optical Second Harmonic Generation in Anisotropic Multilayers with Complete Multireflection of Linear and Nonlinear Waves using #SHAARP.ml Package