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

• 来源期刊: 光电子快报（英文版）
• 学科: 工学
• 年，卷（期）: 2006,（2）
• 页码范围: 104-106
• 页数: 3页
• 分类号: TH742.5
• 语种: 英文

摘要

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.