Out-of-phase mixed holographic gratings: a quantative analysis

TL;DR

This paper presents a quantitative method to analyze mixed holographic gratings by examining diffraction orders, enabling precise determination of phase and amplitude parameters, demonstrated through experiments on lithium niobate.

Contribution

It introduces a simultaneous analysis technique for angular diffraction dependencies to accurately extract parameters of mixed holographic gratings.

Findings

Successfully determined phase and amplitude of gratings in lithium niobate

Validated the analysis method with experimental data

Provided a comprehensive approach for holographic grating characterization

Abstract

We show, that by performing a simultaneous analysis of the angular dependencies of the +/- first and the zeroth diffraction orders of mixed holographic gratings, each of the relevant parameters can be obtained: the strength of the phase grating and the amplitude grating, respectively, as well as a potential phase between them. Experiments on a pure lithium niobate crystal are used to demonstrate the applicability of the analysis.