Simultaneous dual-band ultrahigh-resolution full-field optical coherence tomography

Delphine Sacchet (1) , Julien Moreau (2) , Patrick Georges (1) , Arnaud Dubois (3)

1 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa
2 Laboratoire Charles Fabry de l'Institut d'Optique / Macsybio - bio
3 Laboratoire Charles Fabry de l'Institut d'Optique / Elsa - bio

Ultrahigh-resolution full-field optical coherence tomography (FFOCT) is demonstrated in the 800 nm and 1200 nm wavelength regions simultaneously using a Silicon-based (Si) CCD camera and an Indium Gallium Arsenide (InGaAs) camera as area detectors and a halogen lamp as illumination source. The FF-OCT setup is optimized to support the two broad spectral bands in parallel, achieving a detection sensitivity of ~ 90 dB and a micrometer-scale resolution in the three directions. Images of ex vivo biological tissues are presented (rabbit trachea and Xenopus laevis tadpole) with an increase in penetration depth at 1200 nm. A color image representation is applied to fuse both images and enhance spectroscopic property visualization.

Domaines: Optique [physics.optics]

Delphine Sacchet, Julien Moreau, Patrick Georges, Arnaud Dubois. Simultaneous dual-band ultrahigh-resolution full-field optical coherence tomography. Optics Express, 2008, 16, pp.19434. ⟨hal-00673791⟩