Generation of an axially super-resolved quasi-spherical focal spot using an amplitude-modulated radially polarized beam

被引：44
作者：
Lin, Han
Jia, Baohua
Gu, Min [1 ]
机构：
[1] Swinburne Univ Technol, Fac Engn & Ind Sci, Ctr Microphoton, Hawthorn, Vic 3122, Australia
来源：
OPTICS LETTERS | 2011年 / 36卷 / 13期
基金：
澳大利亚研究理事会;
关键词：
FLUORESCENCE MICROSCOPY; RESOLUTION; NEEDLE; LIGHT;
D O I：
10.1364/OL.36.002471
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
An axially super-resolved quasi-spherical focal spot can be generated by focusing an amplitude-modulated radially polarized beam through a high numerical aperture objective. A method based on the unique depolarization properties of a circular focus is proposed to design the amplitude modulation. The generated focal spot shows a ratio of x:y:z = 1:1:1.48 for the normalized FWHM in three dimensions, compared to that of x:y:z = 1:0.74:1.72 under linear polarization (in the x direction) illumination. Moreover, the focusable light efficiency of the designed amplitude-modulated beam is 65%, which is more than 3 times higher than the optimized case under linear polarization and thus make the amplitude-modulated radial polarization beam more suitable for a wide range of applications. (C) 2011 Optical Society of America
引用
收藏
页码：2471 / 2473
页数：3
相关论文
共 17 条
[1]   Single sharp spot in fluorescence microscopy of two opposing lenses [J].
Blanca, CM ;
Bewersdorf, J ;
Hell, SW .
APPLIED PHYSICS LETTERS, 2001, 79 (15) :2321-2323
[2]   Shaded-mask filtering:: novel strategy for improvement of resolution in radial-polarization scanning microscopy [J].
Caballero, Maria Teresa ;
Ibanez-Lopez, Cristina ;
Martinez-Corral, Manuel .
OPTICAL ENGINEERING, 2006, 45 (09)
[3]   Plasmonic Lens Made of Multiple Concentric Metallic Rings under Radially Polarized Illumination [J].
Chen, Weibin ;
Abeysinghe, Don C. ;
Nelson, Robert L. ;
Zhan, Qiwen .
NANO LETTERS, 2009, 9 (12) :4320-4325
[4]   Superresolution with an apodization film in a confocal setup [J].
Ding, ZH ;
Wang, GY ;
Gu, M ;
Wang, ZJ ;
Fan, ZF .
APPLIED OPTICS, 1997, 36 (01) :360-363
[5]   Sharper focus for a radially polarized light beam [J].
Dorn, R ;
Quabis, S ;
Leuchs, G .
PHYSICAL REVIEW LETTERS, 2003, 91 (23)
[6]   Oblique-incidence characteristics of a parallel-aligned nematic-liquid-crystal spatial light modulator [J].
Fukuchi, N ;
Ye, BQ ;
Igasaki, Y ;
Yoshida, N ;
Kobayashi, Y ;
Hara, T .
OPTICAL REVIEW, 2005, 12 (05) :372-377
[7]  
Gu M., 1999, Advanced Optical Imaging Theory
[8]   Design of DOE for generating a needle of a strong longitudinally polarized field [J].
Huang, Kun ;
Shi, Peng ;
Kang, Xue-liang ;
Zhang, Xiaobo ;
Li, Yong-ping .
OPTICS LETTERS, 2010, 35 (07) :965-967
[9]   Quasi-isotropic 3-D resolution in two-photon scanning microscopy [J].
Ibáñez-López, C ;
Saavedra, G ;
Boyer, G ;
Martínez-Corral, M .
OPTICS EXPRESS, 2005, 13 (16) :6168-6174
[10]   Use of radially polarized beams in three-dimensional photonic crystal fabrication with the two-photon polymerization method [J].
Jia, Baohua ;
Kang, Hong ;
Li, Jiafang ;
Gu, Min .
OPTICS LETTERS, 2009, 34 (13) :1918-1920
12