Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Simultaneous two-wavelength phase unwrapping using an external module for multiplexing off-axis holography

Not Accessible

Your library or personal account may give you access

Abstract

We present a dual-wavelength external holographic microscopy module for quantitative phase imaging of 3D structures with extended thickness range. This is done by simultaneous acquisition of two off-axis interferograms, each at a different wavelength, and generation of a synthetic wavelength, which is larger than the sample optical thickness, allowing two-wavelength unwrapping. The simultaneous acquisition is carried out by using optical multiplexing of the two interferograms onto the camera, where each of them has orthogonal off-axis interference fringe direction in relation to the other one. We used the system to quantitatively image a 7.96 μm step target and 30.5 μm circular copper pillars.

© 2016 Optical Society of America

Full Article  |  PDF Article

Corrections

23 December 2016: A correction was made to page 2.


More Like This
Simultaneous dual-wavelength off-axis flipping digital holography

Lei Liu, Mingguang Shan, Zhi Zhong, Bin Liu, Gunagyu Luan, Ming Diao, and Yabin Zhang
Opt. Lett. 42(21) 4331-4334 (2017)

Simultaneous three-wavelength unwrapping using external digital holographic multiplexing module

Nir A. Turko, Pinkie Jacob Eravuchira, Itay Barnea, and Natan T. Shaked
Opt. Lett. 43(9) 1943-1946 (2018)

Multiplexed off-axis holography using a transmission diffraction grating

Yujie Lu, Yunhui Liu, Peng Li, Yili Fu, and Jie Zhao
Opt. Lett. 41(3) 512-515 (2016)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (3)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved