Simonds, B.
, Rogers, K.
, Schulze, S.
, Newell, D.
, Shaw, G.
, Lehman, J.
and Williams, P.
(2023),
High-Power Radiation-Pressure-based Laser Metrology Using an Electrostatic Force Balance, 15th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD 2023), [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=936417, https://www.npl.co.uk/events/newrad-2023
(Accessed October 14, 2025)
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High-Power Radiation-Pressure-based Laser Metrology Using an Electrostatic Force Balance
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Abstract
A primary standard electrostatic force balance has been integrated into a multiple-reflection radiation pressure-based laser power meter capable of measuring kilowatts of optical power. We present optical power data at 0.1 kW, 1 kW, 2 kW, and 5 kW with the lowest expanded uncertainty at 5 kW of 0.12% (k=2). This is the lowest uncertainty measurement at the kW level and the most accurate radiation pressure optical power measurement to date. Our current efforts are on validating this uncertainty by comparison a secondary (thermal) measurement.Citation
15th International Conference on New Developments and Applications in Optical Radiometry (NEWRAD 2023)
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Created September 11, 2023, Updated February 20, 2025