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For NIST physicist Julia Scherschligt, the most exciting thing about quantum is seeing the real-world applications of this science. Julia leads a group that is
From basics of Fabry-Perot (FP) resonator and roundtrip phase, a complete working equation for a FP cavity based optical pressure standard (OPS) is derived and
Patrick Egan, Eric S. Stanfield, John R. Stoup, Christopher W. Meyer
Recent developments in diameter metrology at NIST have improved the dimensional characterization of piston–cylinder assemblies (PCAs) to unprecedented precision
An n(p, T90) measurement suite is reported for the gases helium, argon, and nitrogen. The methodology is optical refractive-index gas metrology, operating at
Giovanni Garberoglio, Christof Gaiser, Roberto Maria Gavioso, Allan H. Harvey, Robert Hellmann, Bogumil Jeziorski, Karsten Meier, Michael R. Moldover, Laurent Pitre, Krzysztof Szalewicz, Robin Underwood
Recent advances regarding the interplay between ab initio calculations and metrology are reviewed, with particular emphasis on gas-based techniques used for