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Proceedings Paper

Multilayer optical data storage by fluorescence modulation using a CW laser
Author(s): Kenneth D. Singer; Cory W. Christenson; Anuj Saini; Christopher J. Ryan; Heather Mirletz; Irina Shiyanovskaya; Kezhen Yin; Eric Baer
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Paper Abstract

Optical data storage has been widely used in certain consumer applications owing to its passive and robust nature, but has failed to keep with larger industry data storage needs due to the lack of capacity. Many alternatives have been proposed and developed, such as 3D data storage using two-photon absorption that require complex and dangerous laser systems to localize the bits. In this paper, we present a method for localizing bits using a CW 405nm laser diode, in a multilayered polymer film. Data is stored by photobleaching a fluorescent dye, and the response of the material is nonlinear, despite the CW laser and absorption in the visible region. This is achieved using sub-μs pulses from the laser initiating a photothermal effect. This writing method, along with the inexpensive roll-to-roll method for making the disc, will allow for terabyte-scale optical discs using conventional commercial optics and lasers.

Paper Details

Date Published: 26 August 2015
PDF: 6 pages
Proc. SPIE 9587, Optical Data Storage 2015, 95870C (26 August 2015); doi: 10.1117/12.2192451
Show Author Affiliations
Kenneth D. Singer, Case Western Reserve Univ. (United States)
Cory W. Christenson, Case Western Reserve Univ. (United States)
Anuj Saini, Case Western Reserve Univ. (United States)
Christopher J. Ryan, Folio Photonics LLC (United States)
Heather Mirletz, Folio Photonics LLC (United States)
Irina Shiyanovskaya, Folio Photonics LLC (United States)
Kezhen Yin, Case Western Reserve Univ. (United States)
Eric Baer, Case Western Reserve Univ. (United States)

Published in SPIE Proceedings Vol. 9587:
Optical Data Storage 2015
Ryuichi Katayama; Thomas D. Milster, Editor(s)

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