Enhancing depth of focus in tilted microfluidics channels by digital holography

被引：15

作者：

Matrecano, Marcella ^{[1
]}

Paturzo, Melania

Finizio, Andrea

Ferraro, Pietro

机构：

[1] CNR Ist Nazl Ott Applicata, I-80078 Pozzuoli, NA, Italy

来源：

OPTICS LETTERS | 2013年 / 38卷 / 06期

关键词：

EXTENDED DEPTH; MICROSCOPY; FIELD; IMAGE; SYSTEMS;

D O I：

10.1364/OL.38.000896

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this Letter we propose a method to enhance the limited depth of field (DOF) in optical imaging systems, through digital holography. The proposed approach is based on the introduction of a cubic phase plate into the diffraction integral, analogous to what occurs in white-light imaging systems. By this approach we show that it is possible to improve the DOF and to recover the extended focus image of a tilted object in a single reconstruction step. Moreover, we demonstrate the possibility of obtaining well-focused biological cells flowing into a tilted microfluidic channel. (C) 2013 Optical Society of America

引用

页码：896 / 898

页数：3

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