Three-Dimensional Shape measurement of a diffusing surface by use of a femtosecond amplifying optical Kerr gate

摘要

We propose a system for three-dimensional (3D) shape measurements of a diffusing surface by use of a previously developed femtosecond amplifying optical Kerr gate (fs-amp OKG). The system has an opening time of 459 fs and a maximum transmittance of 185/100. It also provides good 3D imaging performance: a transverse imaging resolution of 70μm, a depth resolution of 100μm, and a positioning accuracy of 5.9μm in depth.