Abstract

An elliptical microelectromechanical system (MEMS) membrane mirror is electrostatically actuated to dynamically adjust the optical beam focus and track the axial scanning of the coherence gate in a Doppler optical coherence tomography (DOCT) system at 8kHz. The MEMS mirror is designed to maintain a constant numerical aperture of 0.13 and a spot size of 6.7μm over an imaging depth of 1mm in water, which improves imaging performance in resolving microspheres in gel samples and Doppler shift estimation precision in a flow phantom. The mirror’s small size (1.4mm×1mm) will allow integration with endoscopic MEMS-DOCT for in vivo applications.

© 2006 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
High speed, wide velocity dynamic range Doppler optical coherence tomography (Part I): System design, signal processing, and performance

Victor X.D. Yang, Maggie L. Gordon, Bing Qi, Julius Pekar, Stuart Lo, Emily Seng-Yue, Alvin Mok, Brian C. Wilson, and I. Alex Vitkin
Opt. Express 11(7) 794-809 (2003)

High speed, wide velocity dynamic range Doppler optical coherence tomography (Part III): in vivo endoscopic imaging of blood flow in the rat and human gastrointestinal tracts

Victor X.D. Yang, Maggie L. Gordon, Shou-jiang Tang, Norman E. Marcon, Geoffrey Gardiner, Bing Qi, Stuart Bisland, Emily Seng-Yue, Stewart Lo, Julius Pekar, Brian C. Wilson, and I. Alex Vitkin
Opt. Express 11(19) 2416-2424 (2003)

Common-path optical coherence tomography using a microelectromechanical-system-based endoscopic probe

Donglin Wang, Can Duan, Xiaoyang Zhang, Zhao Yun, Antonio Pozzi, and Huikai Xie
Appl. Opt. 55(25) 6930-6935 (2016)

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 (4)

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

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