We present an Off-Axis dark-field digital holographic microscope capable of parallel acquisition of multiple holograms. With this microscope we aim to measure overlay (OV) with sub-nanometer precision and milli-second acquisition times over large wavelength range.

OSA Technical Digest (Optical Society of America)
doi.org/10.1364/cosi.2020.cf4c.6
Computational Imaging

Messinis, C., van Schaijk, T., Tenner, V., de Boer, J., Witte, S.& den Boef, A. (2020, June 26). Parallel Acquisition of Multiple Images Using Coherence Gating in Off-Axis Dark-Field Digital Holographic Microscope for Semiconductor Metrology. Imaging and Applied Optics Congress, Paper CF4C.6.https://doi.org/10.1364/cosi.2020.cf4c.6