Abstract

Reported is an investigation into the effect of spherical aberration caused by the mismatch of the refractive indices between the recording material and its immersion medium on the three-dimensional optical data-storage density in a two-photon bleaching polymer. It is found both theoretically and experimentally that spherical aberration can be compensated for by a change in the tube length at which a microscope objective is operated in recording and reading processes. After compensation for the spherical aberration it is possible to achieve a three-dimensional recording density of 3.5 Tbits/cm³ for a commercial objective with a numerical aperture of 1.4.

© 1998 Optical Society of America

Three-dimensional coherent transfer function for reflection confocal microscopy in the presence of refractive-index mismatch

Min Gu, Daniel Day, Osamu Nakamura, and Satoshi Kawata
J. Opt. Soc. Am. A 18(8) 2002-2008 (2001)

Use of continuous-wave illumination for two-photon three-dimensional optical bit data storage in a photobleaching polymer

Min Gu and Daniel Day
Opt. Lett. 24(5) 288-290 (1999)

Use of two-photon excitation for erasable–rewritable three-dimensional bit optical data storage in a photorefractive polymer

Daniel Day, Min Gu, and Andrew Smallridge
Opt. Lett. 24(14) 948-950 (1999)

Imaging properties in two-photon excitation microscopy and effects of refractive-index mismatch in thick specimens

Cees J. de Grauw, Jurrien M. Vroom, Hans T. M van der Voort, and Hans C. Gerritsen
Appl. Opt. 38(28) 5995-6003 (1999)

Reflection confocal microscope readout system for three-dimensional photochromic optical data storage

A. Toriumi, S. Kawata, and M. Gu
Opt. Lett. 23(24) 1924-1926 (1998)