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Displaying 76 - 100 of 220

Optical frequency / wavelentgh references

April 25, 2005
Author(s)
Leo W. Hollberg, Christopher W. Oates, G Wilpers, C Hoyt, Zeb Barber, Scott A. Diddams, W Oskay, James C. Bergquist
Ideas for using visible light from atomic transitions for precision instrumentation and metrology go back at least to the 1800's. There are several good reasons to use optical frequencies, and with the scientific and technological advances of the last

Standards of time and frequency at the outset of the 21st century

November 19, 2004
Author(s)
Scott Diddams, James C. Bergquist, Steven R. Jefferts, Christopher W. Oates
In this paper we review state-of-the-art atomic time and frequency standards and discuss some of their uses in science and technology. After fifty years of development, microwave atomic clocks based on cesium have achieved fractional uncertainties below 1

Delivery of High Stability Optical and Microwave Frequency Standards Over an Optical Fiber Network

July 1, 2003
Author(s)
Jun Ye, J L. Peng, R J. Jones, K W. Holman, John L. Hall, D J. Jones, Scott A. Diddams, John E. Kitching, S Bize, James C. Bergquist, Leo W. Hollberg, Lennart Robertsson, L -. Ma
Optical and radio frequency standards located in JILA and NIST laboratories have been connected through a 6.9 km roundtrip optical fiber link. An optical frequency standard based on an Iodine stabilized Nd:YAG laser at 1064 nm with an instability of

Ion Optical Clocks and Quantum Information Processing

May 1, 2003
Author(s)
David J. Wineland, James C. Bergquist, Till P. Rosenband, Piet Schmidt, Wayne M. Itano, John J. Bollinger, Dietrich G. Leibfried, W Oskay
We summarize experiments at NIST that (1) use guantum gates to entabgle ions and thereby improve the measurement signal-to-noise ratio in spectroscopy and (2) implement sympathetic cooling and quantum state transfer techniques, which might be used to