We report an Optical Differentiation Wavefront Sensor based on a telephoto lens system and
binary pixelated filters. It provides a five-fold reduction in the system length compared to a 4f …

This article introduces an innovative line-field confocal optical coherence tomography (LC-
OCT) system based on tandem interferometry, featuring a focus-tunable lens for dynamic …

We present a micro fiber probe based on dispersive interferometry (FPDI) for measuring
high aspect ratio structures with an improved demodulation algorithm and offset correction …

Freeform optical components enable dramatic advances for optical systems in both
performance and packaging. Surface form metrology of manufactured freeform optics …

Freeform optics offer significant advantages over the conventional aspheric optics, but pose
new challenges in metrology and manufacturing. The spatial frequencies of an optical …

Surface form metrology for freeform optical components is a significant challenge that
impacts the entire process chain. One of the main aims is that the metrology technique …