Phase imaging without 2π ambiguity by multiwavelength digital holography

被引：317

作者：

Gass, J ^{[1
]}

Dakoff, A ^{[1
]}

Kim, MK ^{[1
]}

机构：

[1] Univ S Florida, Dept Phys, Tampa, FL 33620 USA

来源：

OPTICS LETTERS | 2003年 / 28卷 / 13期

关键词：

D O I：

10.1364/OL.28.001141

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a phase-imaging method with an axial range that can in principle be arbitrarily large compared to the wavelength and does not involve the usual phase unwrapping by detection of phase discontinuity. The method consists of the generation and combination of two phase maps in a digital holography system by use of two separate wavelengths. For example, we reconstructed the surface of a spherical mirror with similar to10-nm axial resolution and an axial range of similar to3 mum. (C) 2003 Optical Society of America.

引用

页码：1141 / 1143

页数：3

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