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 by:

Search Title, Abstract, Conference, Citation, Keyword or Author
Displaying 51 - 75 of 110

Optical Frequency Standards and Measurements

January 1, 2002
Author(s)
Leo W. Hollberg, Christopher W. Oates, E A. Curtis, Eugene N. Ivanov, Scott A. Diddams, T Udem, Hugh Robinson, James C. Bergquist, Wayne M. Itano, Robert E. Drullinger, David J. Wineland

A Mercury-Ion Optical Clock

September 9, 2001
Author(s)
James C. Bergquist, U Tanaka, Robert E. Drullinger, Wayne M. Itano, David J. Wineland, Scott A. Diddams, Leo W. Hollberg, E A. Curtis, Christopher W. Oates, T Udem

Time Measurement at the Millennium

March 1, 2001
Author(s)
James C. Bergquist, Steven R. Jefferts, David J. Wineland
The latest clocks use a single ion to measure time with an anticipated precision of on part in 10 18

A Single 199 Hg + Ion Optical Clock

January 1, 2001
Author(s)
James C. Bergquist, Christopher W. Oates, E A. Curtis, Leo W. Hollberg, Robert E. Drullinger, Wayne M. Itano, David J. Wineland, T Udem

All-Optical Atomic Clocks

January 1, 2001
Author(s)
Robert E. Drullinger, T Udem, Scott A. Diddams, K R. Vogel, Christopher W. Oates, E A. Curtis, W D. Lee, Wayne M. Itano, Leo W. Hollberg, James C. Bergquist

An Optical Clock Based on a Single Trapped Hg + Ion

January 1, 2001
Author(s)
Scott A. Diddams, T Udem, K R. Vogel, Christopher W. Oates, E A. Curtis, W D. Lee, Wayne M. Itano, Robert E. Drullinger, James C. Bergquist, Leo W. Hollberg
Microwave atomic clocks have been the de facto standards for precision time and frequency metrology over the past 50 years, finding widespread use in basic scientific studies, communications, and navigation. However, with its higher operating frequency, an

Primary Atomic Frequency Standards at NIST

January 1, 2001
Author(s)
Donald Sullivan, James C. Bergquist, Robert E. Drullinger, Wayne M. Itano, Steven R. Jefferts, D W. Lee, D Meekhof, Thomas E. Parker, F L. Walls, David J. Wineland