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

Improvement of reconstructed absorption distribution in data storage medium using absorbers embedded in artificial scattering medium

Not Accessible

Your library or personal account may give you access

Abstract

In ubiquitous information society, thin and secure data storage media with moderate storage capacity are useful. It can be attached to a paper or a cloth like a stamp or a seal. For this purpose, we have been developing a thin data storage medium using absorbers embedded in an artificial scattering medium [1,2]. In the artificial scattering medium, the complicated scattering coefficient distribution can be fabricated by voids created by femtosecond laser processing. The complicated scattering coefficient distribution works as the key to reconstruct numerically the absorption distribution. We have also proposed a numerical reconstruction method using pairs of input and output intensity distributions and the scattering coefficient distribution like optical diffusion tomography. In the reconstruction method, we can make a numerical model where the scattering coefficient distribution is known and the absorption distribution is unknown distribution. By using this model, numerical output intensity distribution is calculated by solving a numerical optical diffusion equation. Experimental output intensity distribution can be obtained. The reconstruction method can modify the absorption distribution so as to decrease the difference between the experimental and numerical output intensity distribution. Iterative process is introduced to make the estimation close to the original one. However, the widths of the reconstructed absorbers become about three times larger than the original one [2].

© 2011 Optical Society of America

PDF Article
More Like This
Secure Data Storage using 3D Scattering Medium

Osamu Matoba, Kouichi Nitta, and Wataru Watanabe
ThJ2_1 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2009

Assessment of Reconstruction Method of Absorber in Scattering Medium Using Intensity Ratio

Toshihiko Yamaoki, Kouichi Nitta, and Osamu Matoba
WPF_27 Conference on Lasers and Electro-Optics/Pacific Rim (CLEO/PR) 2013

Reconstructing absorber images in a three-dimensional scattering medium by using photon-path data

Atsushi Maki and Hideaki Koizumi
RIA299 Advances in Optical Imaging and Photon Migration (BIOMED) 1996

Select as filters


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