An alternative approach to the tomographic reconstruction of smooth refractive index distributions

Abstract

Continuous, mathematically smooth Phase Objects with radial symmetry are reconstructed from cross sections of their refractive index distribution by a novel method, consisting of a linear combination of Gaussian basis functions, whose technical details are discussed. As an application example, this approach is used to get a fast and accurate estimation of the temperature distribution of an actual soldering tip.

Keywords

• optical tomography
• phase object
• metrology
• interferometry