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Paul A. Williams (Fed)
Paul Williams leads the High-Power Laser Applications project at the National Institute of Standards and Technology (NIST). This Project seeks to enhance the ability to measure high-power laser output parameters with the needed accuracy and ease of use appropriate for the application. This project develops measurement techniques for characterizing lasers with continuous wave powers above 1 W. These measurements include laser power, beam profile, and the interaction of the laser light with metals (plate or powder) as experienced in laser-based manufacturing (laser welding and metal additive manufacturing). High laser power measurements at NIST are increasingly being performed with radiation pressure, where the power of a laser beam is measured from the force it imparts on a mirror.
