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Broadband superluminescent diode-based ultrahigh resolution optical coherence tomography for ophthalmic imaging.


ABSTRACT: Spectral domain optical coherence tomography (SD-OCT) with ultrahigh resolution can be used to measure precise structures in the context of ophthalmic imaging. We designed an ultrahigh resolution SD-OCT system based on broadband superluminescent diode (SLD) as the light source. An axial resolution of 2.2 μm in tissue, a scan depth of 1.48 mm, and a high sensitivity of 93 dB were achieved by the spectrometer designed. The ultrahigh-resolution SD-OCT system was employed to image the human cornea and retina with a cross-section image of 2048 × 2048 pixels. Our research demonstrated that ultrahigh -resolution SD-OCT can be achieved using broadband SLD in a simple way.

SUBMITTER: Zhu D 

PROVIDER: S-EPMC3247935 | biostudies-other | 2011 Dec

REPOSITORIES: biostudies-other

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