Superresolution along extended depth of focus with binary-phase filters for the Gaussian beam

被引：32

作者：

Liu, Linbo ^{[1
]}

Diaz, Frederic ^{[2
]}

Wang, Liang ^{[3
]}

Loiseaux, Brigitte ^{[2
]}

Huignard, Jean-Pierre ^{[2
]}

Sheppard, C. J. R. ^{[1
,4
]}

Chen, Nanguang ^{[1
,4
,5
]}

机构：

[1] Natl Univ Singapore, Grad Programme Bioengn, Singapore 117576, Singapore

[2] Thales Res & Technol, F-91767 Palaiseau, France

[3] Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

[4] Natl Univ Singapore, Div Bioengn, Singapore 117576, Singapore

[5] Natl Univ Singapore, Dept Elect & Comp Engn, Singapore 117576, Singapore

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA A-OPTICS IMAGE SCIENCE AND VISION | 2008年 / 25卷 / 08期

关键词：

D O I：

10.1364/JOSAA.25.002095

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In the paraxial Debye regime, simple and power-efficient pupil filters are designed to break the diffraction limit along a large depth of focus (DOF) for the Gaussian beam. Dependences of the superresolution factor, DOF gain, Strehl ratio, sidelobe strength, and axial intensity nonuniformity on the Gaussian profile in the pupil plane are characterized using the numerical method. Optimal filter designs are proposed for either high-resolution or ultra-large-DOF applications followed by experimental verifications. (C) 2008 Optical Society of America.

引用

页码：2095 / 2101

页数：7

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