Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Two-Photon 3-D High Density Optical Data Storage

Not Accessible

Your library or personal account may give you access

Abstract

The inherent three-dimensional features associated with two-photon absorption provides an excellent basis upon which to combine spatially-resolved, two-photon induced photoacid generation and fluorescence quenching with nondestructive two-photon fluorescence imaging, eliminating the need for a fixing step. A significant advantage of this approach is that solutions for optical storage can take advantage of new spatial and spectral dimensions. In addition, this multilayer approach provides optical memories that use the volume of the medium by recording data as binary planes stacked in 3-D. The use of transparent materials as storage media facilitates the use of a large number of layers. The data is stored in discrete bits in the plane, but also through the volume. Relative to a one-photon-based process, much higher information densities can be obtained by writing multiple layers of bits; this is due to, first, the excitation light penetrates deeply into the material, and is absorbed only at the focal region, and secondly, Rayleigh scattering is reduced for the longer wavelengths used for two-photon excitation. The quadratic dependence of two-photon excitation on incident intensity relative to single-photon excitation is illustrated in Figure 1. The more highly localized two-photon excitation can be observed in the focal volume.

© 2003 Optical Society of America

PDF Article
More Like This
3-D Data Storage in Two-Photon Photochromic Optical Memories

F. B. McCormick, I. Cokgor, A. S. Dvornikov, M. Wang, N. Kim, K. Coblentz, S. E. Esener, and P. M. Rentzepis
OWB.1 Symposium on Optical Memory (ODS) 1996

Optimizing Two-Photon 3D Data Storage in Photochromic Materials Using the Principles of Nonlinear Optics

D. A. Akimov, N. I. Koroteev, S. A. Magnitskii, A. N. Naumov, D. A. Sidorov-Biryukov, and A. M. Zheltikov
OTuB.3 Symposium on Optical Memory (ODS) 1996

Three-dimensional optical data storage by two-photon excitation

James H. Strickler and Watt W. Webb
FU8 OSA Annual Meeting (FIO) 1991

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved