Non-destructive optical characterization of microoptical systems
Jahr: | 2020 |
Förderung: | Lower Saxony Ministry for Science and Culture |
Supervisor: | PD Dr. Merve Wollweber |
Co-Supervisor: | |
Projekt ID: | 8 |
Location: | Laser Zentrum Hannover e. V. (LZH) |
Motivation
The Additive Manufacturing of microoptical systems allows the efficient realization of novel optical structures. For the further development and improvement of manufacturing processes and optical designs, a comprehensive characterization of the manufactured components is necessary. To date, destructive methods or functional tests are the only options available for optical characterization. However, there is a great need for new, non-destructive methods for the three-dimensional characterization of optical components.
Objectives
The aim of the project is to develop a non-destructive optical characterization method for additively manufactured microoptical systems. Tomographic (scanning laser optical tomography (SLOT)), optical coherence tomography (OCT), holographic microscopy), chemometric (Raman spectroscopy) and function-analytical methods (attenuation measurement) will be applied, evaluated and transferred into a combined characterization method. From the comparison of measured tomographic data and numerical models, an evaluation of the real local refractive index of additively manufactured three-dimensional sample structures will be derived.