Optimización de pantallas de cristal líquido nemático helicoidal para almacenamiento holográfico de datos

1. Fernández, Elena
2. Márquez, Andrés
3. Ortuño, Manuel
4. Fuentes, Rosa
5. García, Celia,
6. Pascual, Inmaculada

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Abstract

This paper describes two different types of modulations: binary intensity modulation and hybrid ternary amplitude and phase modulation, and the use of these modulations for holographic data storage. The characterization and optimization of a LCD are presented in order to calculate what parameters should be used to obtain these modulations. Different simulations have also been made to see the Fourier transform (FT) for each modulation and see what modulation is the most appropriate modulation to be use in holographic data storage. The best modulation would be the modulation with a homogeneous distribution of energy in the FT plane with no zero frequency peak.

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