Simultaneous measurement of in-plane and out-of-plane displacement fields in scattering media using phase-contrast spectral optical coherence tomography.
The use of phase-contrast spectral optical coherence tomography to measure two orthogonal displacement components on a slice within a scattering medium is demonstrated. This is achieved by combining sequential oblique illumination of the object and recording two interferograms before plus two after the deformation. The proposed technique is illustrated with results from a sample undergoing simple shear. Depth-resolved out-of-plane and in-plane sensitivities of 0.14 and 4.2 microm per fringe are demonstrated up to a depth of 400 microm in a water-based polymer.
De la Torre Ibarra
Manuel H
MH
Centro de Investigaciones en Optica Asociación Civil, Loma Del Bosque, León Guanajuato CP, Mexico. mandlti@cio.mx
Ruiz
Pablo D
PD
Huntley
Jonathan M
JM
D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007089:Image Enhancement / Q000295:instrumentation*; D008027:Light; D008029:Lighting / Q000295:instrumentation* / Q000379:methods; D008858:Microscopy, Phase-Contrast / Q000295:instrumentation* / Q000379:methods; D009391:Nephelometry and Turbidimetry / Q000295:instrumentation* / Q000379:methods; D015203:Reproducibility of Results; D012542:Scattering, Radiation; D012680:Sensitivity and Specificity; D041623:Tomography, Optical Coherence / Q000295:instrumentation* / Q000379:methods