1 April 2005 Ultrahigh resolution OCT imaging with a two-dimensional MEMS scanning endoscope
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Abstract
This paper reports preliminary results from the development and application of a two-dimensional MEMS endoscopic scanner for OCT imaging. A 1 mm diameter mirror provides high aperture over large scan angle and can scan at rates of hundreds of Hz in both axes. The mirror is integrated with focusing optics and a fiber-optic collimator into a package of ~5 mm diameter. Using a broadband femtosecond laser light source, ultrahigh axial image resolution of < 5 um in tissue is achieved at 1.06 um center wavelength. Ultrahigh resolution cross-sectional and three-dimensional OCT imaging is demonstrated with the endoscope with ~12 um transverse resolution and < 5 um axial resolution.
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Aaron D. Aguirre, Paul R. Herz, Yu Chen, James G. Fujimoto, Wibool Piyawattanametha, Li Fan, ShuTing Hsu, Makoto Fujino, Ming C. Wu, Daniel Kopf, "Ultrahigh resolution OCT imaging with a two-dimensional MEMS scanning endoscope", Proc. SPIE 5692, Advanced Biomedical and Clinical Diagnostic Systems III, (1 April 2005); doi: 10.1117/12.593143; https://doi.org/10.1117/12.593143
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