Optoelectronics Letters

, Volume 2, Issue 2, pp 104–106 | Cite as

Coherent confocal microscope with a phase-only filter in its extended source

  • Yang Chu-ping Email author
Devices and Applications


The phase information of an extended source is reconstructed by use of a two-zone (annular) phase-only filter in a coherent confocal scanning optical microscope. The dependence of its resolution on its source size is investigated theoretically by its three-dimensional optical transfer function (3D OTF). The results show that the resolution is improved, even though the source size is enlarged.

CLC number

TH742. 5 

Document code


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Copyright information

© Tianjin University of Technology 2006

Authors and Affiliations

  1. 1.Physics DepartmentSouth China Agricultural UniversityGuangzhouChina

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