3D in vivo optical coherence tomography based on a low-voltage, large-scan-range 2D MEMS mirror.
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.
Sun
Jingjing
J
Department of Electrical and Computer Engineering, University of Florida, Gainesville 32611, Florida, USA. sunjingjingmia@ufl.edu
Guo
Shuguang
S
Wu
Lei
L
Liu
Lin
L
Choe
Se-Woon
SW
Sorg
Brian S
BS
Xie
Huikai
H