Multimodal probe for optical coherence tomography epidetection and micron-scale indentation  

作　　者：L.Bartolini F.Feroldi J.J.A.Weda M.Slaman J.F.de Boer D.Iannuzzi 

机构地区：[1]Department of Physics and Astronomy Vrije Universiteit Amsterdam and LaserLab Amsterdam de Boelelaan 1081,1081HV Amsterdam,The Netherlands

出　　处：《Journal of Innovative Optical Health Sciences》2017年第6期64-72,共9页创新光学健康科学杂志（英文）

基　　金：supported by the Dutch Technology Foundation (STW) under the OMNE program (13183);funding from LASERLABEUROPE under the EC's Seventh Framework Program (Grant agreement No.284464);the European Research Council (615170).

摘　　要：We present a multimodal ferrule-top sensor designed to perform the integrated epidetection of Optical Coberence Tomognphy(OCT)depth-profiles and micron-scale indentation by all-optical detection.By scarning a sample under the probe,we can obtain structural crosse soction images and identify a region of interest in a nonhomogencous 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 aμN precision,the indentation depth with sub-/m precision and a maximum contact radius of 100 pm.Thanks to the visualization of the internal structure of the sample,we can gain a better insi ght into the observed mechanical behavior.The ability to impart a small,confined load,and perfomn OCT A scans at the same time,could lead to an altemative,high transverse resolution,Optical Coherence Elastography(OCE)sensor.

关 键 词：Optomechanical MICROINDENTATION optical coherence tomography INDENTATION multimodal sensor epidetection 

分 类 号：TN2[电子电信—物理电子学]