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Five-Dimensional Optical Data Storage Based on Ellipse Orientation and Fluorescence Intensity in a Silver-Sensitized Commercial Glass

Authors :
Chang-Hyun Park
Yannick Petit
Lionel Canioni
Seung-Han Park
Source :
Micromachines, Vol 11, Iss 12, p 1026 (2020)
Publication Year :
2020
Publisher :
MDPI AG, 2020.

Abstract

Five-dimensional (5D) recording and decoding is demonstrated by using femtosecond direct laser writing in a silver-containing commercial glass. In particular, laser intensities and ellipse orientations generated by anamorphic focusing are employed to produce 5D data storage unit (3D for XYZ, 1D for the orientation of the elliptically-shaped data storage unit and 1D for its fluorescence intensity). In the recording process, two different images of a 4-bit bitmap format were simultaneously embedded in the medium by multiplexing the elliptical orientation of the laser focus and its intensity so as to access oriented elliptical patterns with independent fluorescence intensity. In the decoding process, two merged original images were successfully reconstructed by comparing each data storage unit with a fabricated calibration matrix of 16 × 16 levels for elliptic orientations and fluorescence intensities. We believe this technique can be applied to semi-permanent high-density data storage device.

Details

Language :
English
ISSN :
2072666X
Volume :
11
Issue :
12
Database :
Directory of Open Access Journals
Journal :
Micromachines
Publication Type :
Academic Journal
Accession number :
edsdoj.0f8a56743cf44c018d6ade714dfc0e6a
Document Type :
article
Full Text :
https://doi.org/10.3390/mi11121026