基于低电压、大扫描范围二维微机电系统（MEMS）镜的三维体内光学相干断层扫描技术。

3D in vivo optical coherence tomography based on a low-voltage, large-scan-range 2D MEMS mirror.

作者信息

Sun Jingjing, Guo Shuguang, Wu Lei, Liu Lin, Choe Se-Woon, Sorg Brian S, Xie Huikai

机构信息

Department of Electrical and Computer Engineering, University of Florida, Gainesville 32611, Florida, USA.

出版信息

Opt Express. 2010 Jun 7;18(12):12065-75. doi: 10.1364/OE.18.012065.

DOI:10.1364/OE.18.012065

PMID:20588329

Abstract

3D in vivo optical imaging on a mouse has been obtained using a 2D MEMS mirror for lateral scanning in a time-domain optical coherence tomography (OCT) system. The MEMS mirror aperture size is 1 x 1 mm(2), and the device footprint is 2 x 2 mm(2). The MEMS mirror scans +/- 30 degrees optical angles about both x and y-axis at only 5.5V DC voltage. An endoscopic probe with an outer diameter of 5.8 mm has been designed, manufactured and packaged. The probe scans an average transverse area of 2 mm x 2 mm. The imaging speed of the probe is about 2.5 frames per second, limited by the speed of the employed optical delay line.

摘要

在时域光学相干断层扫描（OCT）系统中，使用二维微机电系统（MEMS）镜进行横向扫描，已在小鼠上获得了三维体内光学成像。MEMS镜的孔径尺寸为1×1平方毫米，器件占地面积为2×2平方毫米。该MEMS镜仅在5.5V直流电压下就能在x和y轴上扫描±30度的光学角度。现已设计、制造并封装了外径为5.8毫米的内窥探头。该探头扫描的平均横向面积为2毫米×2毫米。探头的成像速度约为每秒2.5帧，受所用光学延迟线速度的限制。