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 II): Imaging in vivo cardiac dynamics of Xenopus laevis

Victor X.D. Yang, Maggie L. Gordon, Emily Seng-Yue, Stewart Lo, Bing Qi, Julius Pekar, Alvin Mok, Brian C. Wilson, and I. Alex Vitkin
Opt. Express 11(14) 1650-1658 (2003)

Two-axis magnetically-driven MEMS scanning catheter for endoscopic high-speed optical coherence tomography

Ki Hean Kim, B. Hyle Park, Gopi N. Maguluri, Tom W. Lee, Fran J. Rogomentich, Mirela G. Bancu, Brett E. Bouma, Johannes F. de Boer, and Jonathan J. Bernstein
Opt. Express 15(26) 18130-18140 (2007)

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