作者
Xiangping Li, Yaoyu Cao, Min Gu
发表日期
2011/7/1
期刊
Optics letters
卷号
36
期号
13
页码范围
2510-2512
出版商
Optical Society of America
简介
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.
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X Li, Y Cao, M Gu - Optics letters, 2011