# Simultaneous measurement of phase transmission and linear or circular dichroism of an object under test

## TL;DR

This paper introduces a novel interferometric technique that enables simultaneous, spatially resolved measurement of an object's phase transmission and dichroic properties, including magnitude and orientation, in a single measurement cycle.

## Contribution

It presents a new interferometric method combining phase and polarization variation for concurrent analysis of phase transmission and dichroism of an object.

## Key findings

- Successful experimental implementation demonstrated
- Simultaneous measurement improves efficiency
- Method provides detailed spatially resolved data

## Abstract

This publication presents a novel interferometric method for the simultaneous spatially resolved analysis of an object under test regarding the phase transmission function and the magnitude and orientation of dichroism. Analogous to the classical phase shifting interferometry the measurement strategy is based on the variation of phase and polarization in an interferometer. This procedure allows to analyse simultaneously and spatially resolved the dichroic properties of the object and its impact on the phase of the incoming light in one measurement cycle. The theoretical description of the investigated methods and their experimental implementation are presented.