Fast 3D in vivo swept-source optical coherence tomography using a two-axis MEMS scanning micromirror - Institute of Physics - Optical Coherence Tomography News

Fast 3D in vivo swept-source optical coherence tomography using a two-axis MEMS scanning micromirror

Institute of Physics (Apr 2 2008) Probes
1. Abstract. We report on a fibre-based forward-imaging swept-source optical coherence tomography system using a high-reflectivity two-axis microelectromechanical scanning mirror for high-speed 3D in vivo visualization of cellular-scale architecture of biological specimens. The scanning micromirrors, based on electrostatic staggered vertical comb drive actuators, can provide ± 9° of optical deflection on both rotation axes and uniform reflectivity of greater than 90% over the range of imaging wavelengths (1260–1360 nm), allowing for imaging turbid samples with good signal-to-noise ratio. The wavelength-swept laser, scanning over 100 nm spectrum at 20 kHz rate, enables fast image acquisition at 10.2 million voxels s-1 (for 3D ... (Read Full Article)
  
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