There have been important technological advancements made in the nondestructive testing (NDT) industry with total focusing method (TFM) capable inspection devices becoming more common. In terms of ...
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Focusing ultra-intense lasers to a single wavelength
Adding a rotational hyperbolic mirror after the parabolic one can reduce the F-number and thus the focal spot size significantly. As reported in Advanced Photonics Nexus, this secondary focusing ...
Illustration of the working principle of dynamic z-scanning for auto-focusing. Dynamic beam shaping is achieved by a single TAG lens operating at 140-380kHz in a dual beam path setup (probing beam in ...
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