Abstract

We report a single-shot three-dimensional (3D) topographical imaging method, optical coherence factor (OCF) imaging, which uses optical coherence as the contrast mechanism to acquire the surface height (${z}$-direction) information of an object. A 4-f imaging system records the light field reflected from the surface of the object. The illumination of the imaging system comes from a laser source with the optical coherence length comparable to the depth of field (DoF) of the optical system. Off-axis holographic recording is used to retrieve the coherence factor from the interference fringes, which is then converted to ${z}$-direction information. In this experiment, we validate our 3D imaging results comparing them to axial scanning full-field optical coherence tomography images. We also analyze the contrast mechanism of OCF and show that it is able to provide additional information over conventional coherent and incoherent imaging using the same imaging setup. This single-shot computationally efficient method may have potential applications in industrial quality control inspection.

© 2020 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Single-shot absolute 3D shape measurement with deep-learning-based color fringe projection profilometry

Jiaming Qian, Shijie Feng, Yixuan Li, Tianyang Tao, Jing Han, Qian Chen, and Chao Zuo
Opt. Lett. 45(7) 1842-1845 (2020)

Multimode-fiber-based single-shot full-field measurement of optical pulses

Wen Xiong, Shai Gertler, Hasan Yilmaz, and Hui Cao
Opt. Lett. 45(8) 2462-2465 (2020)

Optically computed optical coherence tomography for volumetric imaging

Yahui Wang, Qi Kang, Yuanwei Zhang, and Xuan Liu
Opt. Lett. 45(7) 1675-1678 (2020)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

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

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 OSA member, or as an authorized user of your institution.

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

Figures (5)

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

Contact your librarian or system administrator
or
Login to access OSA 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 OSA member, or as an authorized user of your institution.

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

Metrics

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

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