RF waveform synthesizers with quantum-based voltage accuracy for communications metrology

August 01, 2019
Peter F. Hopkins, Justus A. Brevik, Manuel C. Castellanos Beltran, Nathan E. Flowers-Jacobs, Anna E. Fox, David I. Olaya, Christine A. Donnelly, Paul D. Dresselhaus, Samuel P. Benz
We report on NIST’s development of Josephson junction-based programmable reference sources to synthesize quantum-accurate, spectrally-pure waveforms for...

Stacked Josephson Junctions as inductors for SFQ circuits

August 01, 2019
Manuel C. Castellanos Beltran, David I. Olaya, Adam J. Sirois, Paul D. Dresselhaus, Samuel P. Benz, Peter F. Hopkins
In order for Single Flux Quantum (SFQ) circuits to be scaled to densities needed for large-scale integration, typical lithographically-patterned circuit...

A SysML Representation of the Wireless Factory Work-cell

June 06, 2019
Richard Candell, Mohamed T. Hany, Yongkang Liu, Sebti Foufou
Smart Manufacturing, also known as Industry 4.0, provides a vision of future manufacturing systems that incorporate highly dynamic physical systems, robust and...

The Design and Development of a Tabletop Kibble Balance at NIST

May 23, 2019
Leon S. Chao, Frank C. Seifert, Darine El Haddad, Julian Stirling, David B. Newell, Stephan Schlamminger
On November 16, 2018, the 26th General Conference on Weights and Measures (CGPM) voted unanimously to revise the International System of Units (SI) from a...

Layer-by-Layer Thinning of MoS2 via Laser Irradiation

April 17, 2019
Bien Cuong Tran Khac, Ryan M. White, Frank W. DelRio, Koo-hyun Chung
Layer-by-layer thinning of molybdenum disulfide (MoS2) via laser irradiation was examined using Raman spectroscopy and atomic force microscopy. In particular,...