High-numerical-aperture full-field optical coherence tomography with space-invariant resolution without scanning the focus

Daniel L. Marks; Tyler S. Ralston; P. Scott Carney; Stephen A. Boppart M.D.

doi:10.1117/12.703372

7 February 2007 High numerical aperture full-field optical coherence tomography with space-invariant resolution without scanning the focus

Daniel L. Marks, Tyler S. Ralston, P. Scott Carney, Stephen A. Boppart M.D.

Author Affiliations +

Proceedings Volume 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI; 64291R (2007) https://doi.org/10.1117/12.703372
Event: SPIE BiOS, 2007, San Jose, California, United States

Abstract

In high-numerical-aperture optical coherence tomography, the depth-of-field is usually quite short and therefore the focus is scanned through the object to form a well-resolved image of the entire volume. However, this may be inconvenient for in vivo scanning when precision placement is not easily achieved between the object and the focusing objective. We show that by scanning the illumination wavelength, and using novel inverse scattering methods on the detected interferograms, features outside of the focus can be resolved and therefore the focus does not need to be scanned.

Citation Download Citation

Daniel L. Marks, Tyler S. Ralston, P. Scott Carney, and Stephen A. Boppart M.D. "High numerical aperture full-field optical coherence tomography with space-invariant resolution without scanning the focus", Proc. SPIE 6429, Coherence Domain Optical Methods and Optical Coherence Tomography in Biomedicine XI, 64291R (7 February 2007); https://doi.org/10.1117/12.703372

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