title: Simultaneous dual-band ultra-high resolution optical coherence tomography.
abstract: Ultra-high resolution optical coherence tomography (OCT) imaging is demonstrated simultaneously at 840 nm and 1230 nm central wavelength using an off-the-shelf turn-key supercontinuum light source. Spectral filtering of the light source emission results in a double peak spectrum with average powers exceeding 100 mW and bandwidths exceeding 200 nm for each wavelength band. A free-space OCT setup optimized to support both wavelengths in parallel is introduced. OCT imaging of biological tissue ex vivo and in vivo is demonstrated with axial resolutions measured to be < 2 mum and < 4 mum at 840 nm and 1230 nm, respectively. This measuring scheme is used to extract spectroscopic features with outstanding spatial resolution enabling enhanced image contrast.
authors: Felix
authors: F
authors: Spöler
authors: Stefan
authors: S
authors: Kray
authors: Patrik
authors: P
authors: Grychtol
authors: Barbara
authors: B
authors: Hermes
authors: Jörg
authors: J
authors: Bornemann
authors: Michael
authors: M
authors: Först
authors: Heinrich
authors: H
authors: Kurz