Portal de Periódicos da CAPES

Full-field optical coherence tomography by two-dimensional heterodyne detection with a pair of CCD cameras

2003; Optica Publishing Group; Volume: 28; Issue: 10 Linguagem: Inglês

10.1364/ol.28.000816

1539-4794

Masahiro Akïba, Kin Pui Chan, Naohiro Tanno,

Advanced Fluorescence Microscopy Techniques

A two-dimensional heterodyne detection technique based on the frequency-synchronous detection method [Jpn. J. Appl. Phys. 39, 1194 (2000)] is demonstrated for full-field optical coherence tomography. This technique, which employs a pair of CCD cameras to detect the in-phase and quadrature components of the heterodyne signal simultaneously, offers the advantage of phase-drift suppression in interferometric measurement. Horizontal cross-sectional images are acquired at the rate of 100 frames/s in a single longitudinal scan, with a depth interval of 6 microm, making the rapid reconstruction of three-dimensional images possible.