| Numéro |
J. Phys. France
Volume 37, Numéro 6, juin 1976
|
|
|---|---|---|
| Page(s) | 731 - 736 | |
| DOI | https://doi.org/10.1051/jphys:01976003706073100 | |
J. Phys. France 37, 731-736 (1976)
DOI: 10.1051/jphys:01976003706073100
1 Facoltà di Ingegneria, Università di Ancona, Italy
2 Facolta di Medicinà, Università di Ancona, Italy
3 C.C.R. EURATOM, Ispra, Italy and Facolta di Ingegneria, Università di Ancona, Italy
6130 - Liquid crystals.
7820E - Optical activity.
Key words
dichroism -- liquid crystals -- optical rotation
DOI: 10.1051/jphys:01976003706073100
On the circular dichroism and rotatory dispersion in cholesteric liquid crystals with a pitch gradient
S. Mazkedian1, S. Melone2 et F. Rustichelli31 Facoltà di Ingegneria, Università di Ancona, Italy
2 Facolta di Medicinà, Università di Ancona, Italy
3 C.C.R. EURATOM, Ispra, Italy and Facolta di Ingegneria, Università di Ancona, Italy
Abstract
The circular dichroism and rotatory dispersion of a cholesteric liquid crystal with a pitch gradient have been theoretically investigated, by using a simple model, for several values of the gradient and of the cholesteric thickness. All the obtained results have been interpreted by simple physical considerations.
Résumé
On étudie théoriquement, sur la base d'un modèle physique simple, le dichroïsme circulaire et la dispersion rotatoire de la lumière dans un cristal liquide cholestérique avec un gradient de pas, pour plusieurs gradients et plusieurs épaisseurs. Tous les résultats obtenus sont interprétés à partir de considérations physiques simples.
6130 - Liquid crystals.
7820E - Optical activity.
Key words
dichroism -- liquid crystals -- optical rotation