Photochromic materials for holographic data storage

Roger A. Lessard; Christophe Lafond; Fatima Ghailane; Michel Bolte; Amir Tork; Ivan Petkov

doi:10.1117/12.369293

11 November 1999 Photochromic materials for holographic data storage

Roger A. Lessard, Christophe Lafond, Fatima Ghailane, Michel Bolte, Amir Tork, Ivan Petkov

Proceedings Volume 3897, Advanced Photonic Sensors and Applications; (1999) https://doi.org/10.1117/12.369293
Event: International Symposium on Photonics and Applications, 1999, Singapore, Singapore

Abstract

Photochromism and real-time holographic recording were characterized for two principal classes of photochromic compounds: spiropyrans and fulgides. For spiropyran molecules, important thickness and writing intensity effects were observed. Concerning fulgide, in PMMA matrix, the closed form presents a maximum of absorption centered at 525 nm upon irradiation at 365 nm. We have determined the photoreaction rate constants k_UV and k_vis respectively for the coloring and bleaching process: k_UV equals 1.2 X 10^-3 s^-1 and k_VIS equals 11.1 X 10^-3 s^-1. Photochemical fatigue resistance in different polymer matrices was investigated. We found a loss of 9, 11, 13 and 35 percent respectively in PS, CA, PMMA and PVK. Concerning holographic recording, we obtained diffraction efficiency (eta) equals 0.65 percent in PMMA films 30 micrometers thick.

Citation Download Citation

Roger A. Lessard, Christophe Lafond, Fatima Ghailane, Michel Bolte, Amir Tork, and Ivan Petkov "Photochromic materials for holographic data storage", Proc. SPIE 3897, Advanced Photonic Sensors and Applications, (11 November 1999); https://doi.org/10.1117/12.369293

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