Gordon A. Shaw

Publications

Using Radiation Pressure to Develop a Radio-Frequency Power Measurement Technique Traceable to the Redefined SI

October 15, 2018

Author(s):

Christopher L. Holloway, Matthew T. Simons, David R. Novotny, John H. Lehman, Paul A. Williams, Gordon A. Shaw

We discuss a power measurement technique traceable to the International System of Units based on radiation pressure (or radiation force) carried by an...

MEMS non-absorbing electromagnetic power sensor employing the effect of radiation pressure

September 09, 2018

Author(s):

Ivan Ryger, Alexandra B. Artusio-Glimpse, Paul A. Williams, Gordon A. Shaw, Matthew T. Simons, Christopher L. Holloway, John H. Lehman

We demonstrate a compact electromagnetic power sensor based on force effects of electromagnetic radiation onto a highly reflective mirror surface. Unlike the...

Milligram mass metrology using an electrostatic force balance

September 28, 2016

Author(s):

Gordon A. Shaw, Julian Stirling, John A. Kramar, Alexander D. Moses, Patrick J. Abbott, Richard L. Steiner, Andrew D. Koffman, Jon R. Pratt, Zeina J. Kubarych

Although mass is typically defined within the International System of Units (SI) at the Kilogram level, the pending redefinition of the SI provides an...

Optomechanical Motion Sensors

July 08, 2015

Author(s):

Felipe Guzman, Oliver Gerberding, John T. Melcher, Julian Stirling, Jon R. Pratt, Gordon A. Shaw, Jacob M. Taylor

Compact optical cavities can be combined with motion sensors to yield unprecedented resolution and SI-traceability in areas such as acceleration sensing and...

Accurate Flexural Spring Constant Calibration of Colloid Probe Cantilevers using Scanning Laser Doppler Vibrometry

May 20, 2015

Author(s):

Richard S. Gates, William A. Osborn, Gordon A. Shaw

Calibration of the flexural spring constant for atomic force microscope colloid probe cantilevers provides significant challenges. The presence of a large...