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Proceedings Paper

In vivo 3D and Doppler OCT imaging using electrothermal MEMS scanning mirrors
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Paper Abstract

Most cancers occur inside human body, so endoscopic high-resolution imaging modalities are required for early cancer detection and surgical removal. This paper reports in vivo endoscopic 3D imaging based on optical coherence tomography (OCT). Endoscopic imaging is enabled by integrating rapid-scanning MEMS mirror into a miniature imaging probe. The MEMS mirror has an aperture size of 1 mm by 1 mm and a chip size of 2 mm by 2 mm. The optical scan angle exceeds ±25 V at 6 Vdc, and thus large, constant-velocity, linear scan can be realized. The outer diameter of the probe is only 5 mm. The axial resolution is about 10 μm and the imaging speed is 2.5 frames per second. Doppler OCT imaging has also been demonstrated.

Paper Details

Date Published: 16 February 2010
PDF: 8 pages
Proc. SPIE 7594, MOEMS and Miniaturized Systems IX, 759405 (16 February 2010); doi: 10.1117/12.847237
Show Author Affiliations
Jingjing Sun, Univ. of Florida (United States)
Shuguang Guo, Univ. of Florida (United States)
Lei Wu, WiOptix, Inc. (United States)
Se-Woon Choe, Univ. of Florida (United States)
Brian Sorg, Univ. of Florida (United States)
Huikai Xie, Univ. of Florida (United States)

Published in SPIE Proceedings Vol. 7594:
MOEMS and Miniaturized Systems IX
Harald Schenk; Wibool Piyawattanametha, Editor(s)

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