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NIST Authors in Bold

Displaying 8301 - 8325 of 17269

Comparison of Multiple Methods for Obtaining PO Resistances with Low Uncertainties

September 3, 2019
Author(s)
Kwang Min Yu, Dean G. Jarrett, Albert Rigosi, Shamith Payagala, Marlin E. Kraft
Capabilities for high resistance determinations are essential for calibration of currents below 1 pA, as typically requested in several applications, including semiconductor device characterization, single electron transport, and ion beam technologies

Workshop 9: Control Cells or Not

June 17, 2019
Author(s)
Paul Wallace, Jonni S. Moore, Derek Jones, Litwin Virginia, Lili Wang, Yanli Liu
"Control Cells or Not" was an educational workshop that used surveys, lectures, and discussions to identify problems and solutions related to using commercially available control cell products and lab-developed approaches. Collective efforts are proposed

Hyper-Ramsey spectroscopy with probe laser intensity fluctuations

March 29, 2018
Author(s)
Kyle P. Beloy
We examine the influence of probe laser intensity fluctuations on hyper-Ramsey spectroscopy. We assume, as is appropriate for relevant cases of interest, that the probe laser intensity $I$ determines both the Rabi frequency $(\propto\sqrt)$ and the

Modeling Bloch Oscillations in Nanoscale Josephson Junctions

August 7, 2017
Author(s)
Heli C. Vora, Richard Kautz, Sae Woo Nam, Jose A. Aumentado
Bloch oscillations in nanoscale Josephson junctions with a Coulomb charging energy comparable to the Josephson coupling energy are explored within the context of a model previously considered by Geigenmüller and Schön that includes Zener tunneling and

Third Generation of Adapted Wheatstone Bridge for High Resistance Measurements at NIST

July 10, 2016
Author(s)
Dean G. Jarrett, Shamith Payagala, Marlin E. Kraft, Kwang Min Yu
A third generation of adapted Wheatstone bridge is being developed at NIST to improve high resistance measurements and scaling from 1 TΩ to 10 PΩ. Improvements to extend range and reduce uncertainties include automated calibration of the voltage sources

Optimizing Passive Quantum Clocks

October 8, 2014
Author(s)
Michael J. Mullan, Emanuel Knill
We describe protocols for passive atomic clocks based onquantum interrogation of the atoms. Unlike previous techniques, our protocols are adaptive and take advantage of prior information about the clock's state. To reduce deviations from an ideal clock

Bilateral comparison on polarization mode dispersion between KRISS and NIST

October 10, 2008
Author(s)
Seung-kwan Kim, Paul A. Williams
We made an international bilateral comparison on polarization mode dispersion between KRISS and NIST. Three mode-coupled artifacts were used for comparison. The average values of differential group delay measured by both institutes agreed well within their

Frequency Stability, ed. by K. Chang

January 1, 2005
Author(s)
David A. Howe
This chapter introduces the concept of frequency stability measurements of oscillators by the Allan Deviation and spectral analysis. Examples and typical results are presented. Physical interpretations of common noise processes are discussed.
Displaying 8301 - 8325 of 17269
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