U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Search Publications

NIST Authors in Bold

Displaying 7601 - 7625 of 143775

On the Future of Scientific Publication

October 12, 2021
Author(s)
Peter Strickland, Andrew J. Allen
We give a brief review of the rapidly changing landscape for scientific publication, especially in regard to scientific archival journal publication. Some of the many challenges and opportunities are outlined. These include the various forms of open access

Optical Frequency Synthesis Based on Modelocked Lasers

October 12, 2021
Author(s)
S T. Cundiff, Jun Ye, John L. Hall
The synthesis of optical frequencies from the primary cesium microwave standard has traditionally been a difficult problem due to the large difference in frequencies. Recently a dramatic advance in this field has occurred due to the introduction of the use

Optical Probes for Monitoring Intercalation and Exfoliation in Melt Processed Polymer Nanocomposites

October 12, 2021
Author(s)
P H. Maupin, Jeffrey W. Gilman, Richard H. Harris Jr., S Bellayer, Anthony J. Bur, S C. Roth, A B. Morgan, J R. Harris, M Murariu
Laser induced fluorescence spectroscopy of the optical probe Nile Blue A in polymer clay nanocomposites is described. Concentration quenching of fluorescence dominates probe behavior until the clay platelets are physically separated by polymer

Optical Pulse Synthesis From Two Separate Femtosecond Lasers

October 12, 2021
Author(s)
R K. Shelton, L -. Ma, H C. Kapteyn, M M. Murnane, J L. Hall, Jun Ye
Two independent mode-locked femtosecond lasers are tightly synchronized and phase locked. The rms timing jitter between the lasers is 4.3 fs within a 160 Hz bandwidth. The rms noise of the beat frequency between the two optical combs is 140 mHz at 1s

Optimizing Available Tools for Obtaining Result Standardization: A Joint Committee on Traceability in Laboratory Medicine (JCTLM) Project

October 12, 2021
Author(s)
Mauro Panteghini, Federica Braga, Johanna Camara, Vincent Delatour, Katleen Van Uytfanghe, Hubert Vesper, Tianjiao Zhang
BACKGROUND: The JCTLM created a Task Force on Reference Measurement System Implementation (TFRMSI) to provide guidance on metrological traceability implementation for the in vitro diagnostics (IVD) community. CONTENT: TF-RMSI investigated the reference
Displaying 7601 - 7625 of 143775
Was this page helpful?