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Title

Superresolution-focal-volume induced 3:0 Tbytes/disk capacity by focusing a radially polarized beam

Author(s)

Li, Xiangping;  Cao, Yaoyu;  Gu, Min

Abstract

This paper reports on the study of the superresolution volume of the focal spot by focusing a radially polarized beam. This feature is achieved by increasing the inner radius of a high NA annular objective to break the diffraction-limited volume of a focal spot. The application of this finding into two-photon induced threedimensional optical data storage leads to an enhanced photoreduction threshold effect in recording. As such, multilayer subdiffraction optical recording is experimentally demonstrated with an equivalent capacity of 3:0 Tbytes/disk.

Publication type

Journal article

Research centre

Swinburne University of Technology. Faculty of Engineering and Industrial Sciences. Centre for Micro-Photonics

Source

Optics Letters, Vol. 36, no. 13 (Jul 2011), pp. 2510-2512

Publication year

2011

FOR Code(s)

0205 Optical Physics

Keyword(s)

Data storage capacity;  Optical data storage;  Optical recording;  Radially polarized beams;  Superresolution volume

Publisher

Optical Society of America

ISSN

0146-9592

Publisher URL

http://dx.doi.org/10.1364/ol.36.002510

Copyright

Copyright © 2011 Optical Society of America. This paper was published in Optics Letters and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/ol.36.002510. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.

Research Projects

An accelerating journey to the new era of Petabyte optical memory systems, Australian Research Council grant number FL100100099

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