Optical coherence tomography—in situ and high-speed 3d imaging for laser materials processing

HIGHLIGHTS

• who: Xiaodong Wang from the Taking advantage of this custom-built OCT system, Zvagelsky et_al have achieved a , u03bcm lateral resolution, ., u03bcm axial FWHM, up to , mm axial field-of-view for one, scan, and , u03bcs acquisition time for one, scan (equivalent to a frame rate of , kHz). On top of this, a wide range of applications were demonstrated to validate the real-life inspections for this OCT instrument, including photoresist-homogeneity inspection before printing, in situ evaluation of the laser-power-dependent refractive index of polymerised regions, time-dependent diffusion processes, thickness measurements of printed parts . . .
  

   

  

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