Multiplexing holograms for data page storage using a LCD as hybrid ternary modulation

Elena Fernández; Manuel Ortuño; Sergi Gallego; Celia García; Andrés Márquez; Augusto Beléndez; Inmaculada Pascual

doi:10.1117/12.820622

19 May 2009 Multiplexing holograms for data page storage using a LCD as hybrid ternary modulation

Elena Fernández, Manuel Ortuño, Sergi Gallego, Celia García, Andrés Márquez, Augusto Beléndez, Inmaculada Pascual

Proceedings Volume 7358, Holography: Advances and Modern Trends; 73581C (2009) https://doi.org/10.1117/12.820622
Event: SPIE Optics + Optoelectronics, 2009, Prague, Czech Republic

Abstract

Holographic data storage is a new optical technology which allows an important number of bits to be stored in a recording material. In this work, holographic data pages were stored in a PVA/acrylamide photopolymer layer using a peristrophic multiplexing method. This material is formed of acrylamide photopolymers, which are considered interesting materials for recording holographic memories. A liquid crystal (LCD) device was used to modify the object beam and store the data pages in the material. This LCD was used to modulate the object beam in order to reduce the zero frequency of the Fourier Transform (FT) of the object. The scheme used to reduce this frequency was hybrid ternary modulation (HTM).

Citation Download Citation

Elena Fernández, Manuel Ortuño, Sergi Gallego, Celia García, Andrés Márquez, Augusto Beléndez, and Inmaculada Pascual "Multiplexing holograms for data page storage using a LCD as hybrid ternary modulation", Proc. SPIE 7358, Holography: Advances and Modern Trends, 73581C (19 May 2009); https://doi.org/10.1117/12.820622

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available