Sample motion-insensitive, full-range, complex, spectral-domain optical-coherence tomography.
We present a full-range, complex, spectral-domain optical-coherence-tomography (SD-OCT) system that is based on a double-beam scanning approach. The sample beams of two identical SD-OCT setups are combined collinearly by a bulk optic beam splitter before illuminating the object. The required phase shift for the complex signal reconstruction comes from the phase difference between both interferometers. Because of the double-beam scanning approach, our system is completely insensitive to sample motion. To demonstrate the performance of our setup, we present images of the human optic nerve head in vivo and of a human tooth.
Center for Medical Physics and Biomedical Engineering, Medical University of Vienna, Währingerstrasse 13, A-1090 Vienna, Austria. stefan.zotter@meduniwien.ac.at
Stefan
S
Zotter
Michael
M
Pircher
Erich
E
Götzinger
Teresa
T
Torzicky
Marco
M
Bonesi
Christoph K
CK
Hitzenberger
D006801:Humans; D007091:Image Processing, Computer-Assisted; D007909:Lenses; D009068:Movement; D009900:Optic Nerve / Q000502:physiology; D041623:Tomography, Optical Coherence / Q000295:instrumentation / Q000379:methods*; D014070:Tooth / Q000502:physiology