High-speed, high-sensitivity, gated surface profiling with closed-loop optical coherence topography

Abstract

We describe and experimentally demonstrate a novel (to our knowledge) surface profiling technique, for which we propose the term closed-loop optical coherence topography. This technique is a scanning beam, servo-locked variation of low-coherence interferometry. It allows for the sub-wavelength-resolution tracking of a weakly scattering macroscopic-scale surface, with the surface profile being directly output by the controlling electronics. The absence of significant real-time computational overhead makes the technique well suited to high-speed tracking. The use of a micrometer-scale coherence gate efficiently suppresses signals arising from structures not associated with the surface. These features make the technique particularly well suited to real-time surface profiling of in vivo, macroscopic biological surfaces.

© 2002 Optical Society of America

High-resolution optical coherence microscopy for high-speed, in vivo cellular imaging

A. D. Aguirre, P. Hsiung, T. H. Ko, I. Hartl, and J. G. Fujimoto
Opt. Lett. 28(21) 2064-2066 (2003)

Wide-field, full-field optical coherence microscopy for high-axial-resolution phase and amplitude imaging

Antoine Federici, Henrique S. Gutierrez da Costa, Jonas Ogien, Audrey K. Ellerbee, and Arnaud Dubois
Appl. Opt. 54(27) 8212-8220 (2015)

In vivo anterior segment imaging in the rat eye with high speed white light full-field optical coherence tomography

Kate Grieve, Arnaud Dubois, Manuel Simonutti, Michel Paques, José Sahel, Jean-François Le Gargasson, and Claude Boccara
Opt. Express 13(16) 6286-6295 (2005)

Optical coherence tomography for quantitative surface topography

Sergio Ortiz, Damian Siedlecki, Laura Remon, and Susana Marcos
Appl. Opt. 48(35) 6708-6715 (2009)

Dispersion compensation in high-speed optical coherence tomography by acousto-optic modulation

Tuqiang Xie, Zhenguo Wang, and Yingtian Pan
Appl. Opt. 44(20) 4272-4280 (2005)