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Search Publications by: Corey Stambaugh (Fed)

Displaying 26 - 30 of 30

Alignment and testing of the NIST Calculable Capacitor

August 24, 2014

Author(s)

Yicheng Wang, Felipe Guzman, Corey A. Stambaugh, Radek Smid, Hugo Zuniga Calvo, Andrew D. Koffman, Jon R. Pratt, John R. Lawall

This paper reports progress on the NIST effort to develop a new calculable capacitor, focusing on improvement of the guard electrode motion control as well as issues associated with the overall electrode alignment. Design of a multi-wavelength Fabry-Perot

Cavity-enhanced measurements for determining dielectric membrane thickness and complex index of refraction

July 23, 2014

Author(s)

Corey A. Stambaugh, Utku Kemiktarak, Mathieu Durand, John R. Lawall

The material properties of silicon nitride play an important role in the performance of SIN membranes used in opto-mechanical setups. Accurate modeling of the reflectivities of sub-wavelength diffraction gratings is especially dependent on knowledge of the

A Switch-controller for Improved Measurements in the NIST Magnetic Suspension Mass Comparator

Author(s)

Nicholas A. Vlajic, Melissa L. Davis, Corey A. Stambaugh

We describe a switch-based control strategy implemented on a proof-of-concept version of the Magnetic Suspension Mass Comparator (MSMC) at the National Institute of Standards and Technology. The MSMC apparatus is used to compare mass artifacts held in air