# Application of retardation-modulation polarimetry in studies of nanocomposite materials

## TL;DR

This paper demonstrates how retardation-modulation polarimetry can be used to study molecular ordering and chiral structuring in nanocomposite materials, specifically liquid crystals within nanochannels.

## Contribution

It introduces a novel application of polarimetry for analyzing molecular and chiral structures in nanocomposites with high spatial resolution.

## Key findings

- Simultaneous measurement of birefringence and optical activity.
- Effective characterization of molecular ordering in nanochannels.
- Application to both nonchiral and chiral liquid crystals.

## Abstract

We demonstrate an application of retardation-modulation polarimetry in studies of nanocomposite materials. Molecular ordering is explored on both nonchiral and chiral liquid crystals (LCs) in the bulk state and embedded into parallel-arrays of cylindrical channels of alumina or silica membranes of different channel sizes (12-42 nm). Two arms polarimetry serves for simultaneous measurements of the birefringence retardation and optical activity characterizing, respectively, orientational molecular ordering and chiral structuring inside nanochannels.

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Source: https://tomesphere.com/paper/1904.10268