In situ monitoring is critical to the increasing adoption of laser powder bed fusion (LPBF) and
laser welding by industry for manufacture of complex metallic components. Optical …

Ptychography is a lens-free imaging method which can outstrip the resolution limitations of
optical apparatuses, even so the algorithm automatically totes background noise during the …

High-power lasers are rapidly becoming standard tools in advanced manufacturing, mainly
in the form of laser welding, laser cutting, and laser additive manufacturing. Of these …

Laser additive manufacturing (AM) promises direct metal 3D printing, but is held back by
defects and process instabilities, giving rise to a need for in situ process monitoring. Inline …

Inline Coherent Imaging (ICI) is a reliable method for real-time monitoring of various laser
processes, including keyhole welding, additive manufacturing, and micromachining …

Optical coherence tomography (OCT) allows a direct and precise measurement of laser
welding depth by coaxially measuring the keyhole depth and can be used for process …

Sheet metal stamping is widely used in the automotive sector, where the thickness of the
blanks is critical to reduce the final weight of the manufactured part. Nevertheless, in specific …

Coherent imaging of high-power laser processing can suffer from artifacts and insufficient
signal. By z-domain multiplexing, we achieve phase-enabled image consolidation …

Optical coherence tomography (OCT) has become widespread in the world of metrology,
owing to its ability to conduct measurements with unparalleled precision. OCT has …