A Handheld Electromagnetically Actuated Fiber Optic Raster Scanner for Reflectance Confocal Imaging of Biological Tissues

Author

Mansoor, H. ; Haishan Zeng ; Tai, I.T. ; Jianhua Zhao ; Mu Chiao

Author_Institution

Dept. of Mech. Eng., Univ. of British Columbia, Vancouver, BC, Canada

Volume

60

Issue

5

fYear

2013

fDate

May-13

Firstpage

1431

Lastpage

1438

Abstract

We present a hand-held device aimed for reflectance-mode confocal imaging of biological tissues. The device consists of a light carrying optical fiber and a miniaturized raster scanner located at the distal end of the fiber. It is fabricated by mounting a polarization maintaining optical fiber on a cantilever beam that is attached to another beam such that their bending axes are perpendicular to each other. Fiber scanner is driven by electromagnetic forces and enables large fiber deflections with low driving currents. Optical resolutions of the system are 1.55 and 8.45 μm in the lateral and axial directions, respectively. Functionality of the system is demonstrated by obtaining confocal images of a fly wing and a human colon tissue sample.

Keywords

bio-optics; biological techniques; biological tissues; optical fibres; biological tissues; cantilever beam; electromagnetically actuated raster scanner; fiber optic raster scanner; fly wing and; handheld raster scanner; human colon tissue; optical resolution; polarization maintaining optical fiber; reflectance confocal imaging; Laser beams; Lenses; Optical fiber polarization; Optical imaging; Biomedical optical imaging; electromagnetic actuators; microelectromechanical devices; reflectance confocal imaging; scanning probe microscopy; Animals; Colon; Diptera; Electromagnetic Fields; Fiber Optic Technology; Humans; Lasers; Microscopy, Confocal; Miniaturization; Optical Fibers; Optical Imaging; Wing;

fLanguage

English

Journal_Title

Biomedical Engineering, IEEE Transactions on

Publisher

ieee

ISSN

0018-9294

Type

jour

DOI

10.1109/TBME.2012.2236326

Filename

6399573