Details

Autor(en) / Beteiligte

• Yun, S.
• Tearney, G.
• Bouma, B.
• Park, B.
• de Boer, Johannes

Titel

High-speed spectral-domain optical coherence tomography at 13 μm wavelength

Ist Teil von

• Optics express, 2003-12, Vol.11 (26), p.3598-3604

Erscheinungsjahr

2003

Quelle

Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals

Beschreibungen/Notizen

• We demonstrate a high-speed spectral domain optical coherence tomography (SD-OCT) system capable of acquiring individual axial scans in 24.4 μs at a rate of 19,000 axial scans per second, using an InGaAs line scan camera and broadband light source centered at 1.31 μm. Sensitivity of >105 dB over a 2-mm depth range was obtained with a free-space axial resolution of 12-14 μm, in agreement with our signal-to-noise ratio predictions. Images of human tissue obtained in vivo with SD-OCT show similar penetration depths to those obtained with state-of-the-art time domain OCT despite the ten-fold higher image acquisition speed. These results demonstrate the potential of 1.3 μm SD-OCT for high-speed and high-sensitivity imaging in patients.