Link to DOI – 10.1016/j.optcom.2006.05.016
Opt. Commun. 266 (2006) 738–743
Full-field optical coherence tomography with dynamic focusing correction is demonstrated in the 1.2 µm wavelength region using an Indium Gallium Arsenide area camera as image sensor and a halogen lamp as illumination source. An axial image resolution of 1.6 µm is measured in air (~ 1.1 µm in tissue) which is the best resolution ever achieved in OCT in this wavelength region. En face tomographic images are produced using a phase-shifting method requiring the acquisition of only two phase-opposed interferometric images. In spite of a relatively moderate detection sensitivity of 80 dB within 1.0 s image acquisition time, ultrahigh resolution imaging in highly scattering biological tissues is possible without immersion medium.