Work

Simplified kilogram traceability for high-power laser measurement using photon momentum radiometers

Year: 2020

Type: article

Abstract: Photon momentum radiometers measure the force imparted by a reflected laser beam to determine the laser's optical power. This requires high-accuracy calibration of the force sensors using milligram and microgram mass artifacts. Calibrated test masses can therefore be used to provide traceability of these radiometers to the International System of Units, but low-noise calibration at these mass levels is difficult. Here, we present the improvement in calibration capability that we have gained from implementing a robotic mass delivery system. We quantify this in terms of the specific nuances of force measurements as implemented for laser power metrology.

Source: Applied Optics

DOI: 10.1364/ao.399989

Authors: Kyle A. Rogers, Paul A. Williams, Gordon A. Shaw, John H. Lehman

Institution: National Institute of Standards and Technology

Language: English

Topic: Scientific Measurement and Uncertainty Evaluation

Subfield: Statistics, Probability and Uncertainty

Field: Decision Sciences

Domain: Social Sciences

Open Access status: green

Funder: Naval Surface Warfare Center

OpenAlex ID: W3083979703