Journal of Innovative Optical Health Sciences, Volume. 10, Issue 6, 1742007(2017)
Multimodal probe for optical coherence tomography epidetection and micron-scale indentation
We present a multimodal ferrule-top sensor designed to perform the integrated epidetection of Optical Coherence Tomography (OCT) depth-profiles and micron-scale indentation by all-optical detection. By scanning a sample under the probe, we can obtain structural cross-section images and identify a region-of-interest in a nonhomogeneous sample. Then, with the same probe and setup, we can immediately target that area with a series of spherical-indentation measurements, in which the applied load is known with a μN precision, the indentation depth with sub-μm precision and a maximum contact radius of 100 μm. Thanks to the visualization of the internal structure of the sample, we can gain a better insight into the observed mechanical behavior. The ability to impart a small, confined load, and perform OCT A-scans at the same time, could lead to an alternative, high transverse resolution, Optical Coherence Elastography (OCE) sensor.
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L. Bartolini, F. Feroldi, J. J. A. Weda, M. Slaman, J. F. de Boer, D. Iannuzzi. Multimodal probe for optical coherence tomography epidetection and micron-scale indentation[J]. Journal of Innovative Optical Health Sciences, 2017, 10(6): 1742007
Received: Jun. 10, 2017
Accepted: Sep. 15, 2017
Published Online: Jan. 10, 2019
The Author Email: Bartolini L. (l.bartolini@vu.nl)