Low-coherence digital holography with a multireflection reference mirror

被引：4
|
作者：
Quang Duc Pham [1 ,2 ,3 ]
Hayasaki, Yoshio [1 ]
机构：
[1] Utsunomiya Univ, Ctr Opt Res & Educ CORE, 7-1-2 Yoto, Utsunomiya, Tochigi 3218585, Japan
[2] Natl Ctr Technol Progress, 25 Le Thanh Tong, Hanoi, Vietnam
[3] Vietnam Inst Sci Technol & Innovat, 38 Ngo Quyen, Hanoi, Vietnam
来源：
OPTICS LETTERS | 2020年 / 45卷 / 16期
关键词：
MICROSCOPY;
D O I：
10.1364/OL.397475
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A method for expanding the measurement range of low-coherence digital holography up to several times longer than the coherence length is proposed. The method was implemented with a multireflection reference mirror composed of partially and highly reflective mirrors, in conjunction with the Fourier transform method with spatial filtering for single-shot complex amplitude imaging, making it useful for observing a moving and deforming object. One of the features of the reference arm is that the measurement range is simply controlled by adjusting the position and angle of the highly reflective mirror. The measurement of objects with a general curved shape and a large step height was demonstrated. (C) 2020 Optical Society of America
引用
收藏
页码：4393 / 4396
页数：4
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