title: Superresolution-focal-volume induced 3.0 Tbytes/disk capacity by focusing a radially polarized beam.
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 three-dimensional 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.
authors: Centre for Micro-Photonics, Faculty of Engineering and Industrial Sciences, Swinburne University of Technology, P.O. Box 218, Hawthorn, Victoria 3122, Australia.
authors: Xiangping
authors: X
authors: Li
authors: Yaoyu
authors: Y
authors: Cao
authors: Min
authors: M
authors: Gu