Abstract
The paper reports 3D in vivo endoscopic imaging enabled by integrating rapid-scanning MEMS mirrors into an optical coherence tomography (OCT) imaging probe. OCT provides high-resolution cross-sectional information suitable for in vivo noninvasive early cancer diagnosis. However, conventional OCT systems are bulky and slow, and thus are difficult to apply to internal organs where most cancers are originated. Microelectromechanical systems (MEMS) technology offers the advantages of small size and fast speed and can be used to miniaturize optical imaging probes. The MEMS mirrors have large aperture size (1 mm x 1 mm), large scan range (> ±25°) and low drive voltage (< 10 V). A 5.8mm-diameter FEB-protected MEMS-OCT has been built and 3D OCT images of live mice have been successfully acquired with a resolution of ∼10μm and a frame rate of 2.5 frames per second.
| Original language | English |
|---|---|
| Title of host publication | Optical Sensors and Biophotonics |
| DOIs | |
| Publication status | Published - 2009 |
| Externally published | Yes |
| Event | Optical Sensors and Biophotonics - Shanghai, China Duration: 2 Nov 2009 → 6 Nov 2009 |
Publication series
| Name | Proceedings of SPIE - The International Society for Optical Engineering |
|---|---|
| Volume | 7634 |
| ISSN (Print) | 0277-786X |
Conference
| Conference | Optical Sensors and Biophotonics |
|---|---|
| Country/Territory | China |
| City | Shanghai |
| Period | 2/11/09 → 6/11/09 |
UN SDGs
This output contributes to the following UN Sustainable Development Goals (SDGs)
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SDG 3 Good Health and Well-being
Keywords
- Bimorph
- Electrothermal actuation
- MEMS
- Micromirror
- Optical coherence tomography
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