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Optical Physics News

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Future 'Comb on a Chip': NIST's Compact Frequency Comb Could Go Places
Release Date: 10/25/2011

Laser frequency combs—extraordinarily precise tools for measuring frequencies (or colors) of light—have helped propel advances in timekeeping, … more

NIST Demonstrates First Quantum 'Entanglement' of Ions Using Microwaves
Release Date: 08/16/2011

Physicists at the National Institute of Standards and Technology (NIST) have, for the first time, linked the quantum properties of two separated … more

NIST Physicists 'Entangle' Two Atoms Using Microwaves for the First Time
Release Date: 08/10/2011

New Approach Harnesses Mature Electronics to Simplify Ion-trap Quantum Computers BOULDER, Colo. – Physicists at the National Institute of … more

New Calculations on Blackbody Energy Set the Stage for Clocks with Unprecedented Accuracy
Release Date: 05/06/2011

A team of physicists from the United States and Russia announced today* that it has developed a means for computing, with unprecedented accuracy, … more

Beware the Dim Laser Pointer: NIST Researchers Measure High Infrared Power Levels from Some Green Lasers
Release Date: 08/03/2010

Green laser pointers have become a popular consumer item, delivering light that’s brighter to the eye than red lasers, but stories have circulated … more

Stacking the Deck: Single Photons Observed at Seemingly Faster-than-Light Speeds
Release Date: 01/26/2010

(Top) A single photon travels through alternating layers of low (blue) and high (green) refractive index material more slowly (top) or quickly … more

Everlasting Quantum Wave: NIST Physicists Predict New Form of Soliton in Ultracold Gases
Release Date: 12/15/2009

Solitary waves that run a long distance without losing their shape or dying out are a special class of waves called solitons. These everlasting … more

Scientists Build First 'Frequency Comb' To Display Visible 'Teeth'
Release Date: 10/29/2009

Finally, an optical frequency comb that visibly lives up to its name. Scientists at the University of Konstanz in Germany and the National … more

‘Femtomolar Optical Tweezers’ May Enable Sensitive Blood Tests
Release Date: 11/12/2008

Basic scheme of an optical tweezer-based sensor of biological particles. A microsphere covered with a specific antigen (such as a virus or other … more

‘Micro-boxes’ of Water Used to Study Single Molecules
Release Date: 07/20/2006

Prodded by optical tweezers, two "hydrosomes" move together and fuse to mix their contents, in an experiment using water droplets as minuscule … more

Mercury Atomic Clock Sets Time-Keeping Record
Release Date: 07/20/2006

NIST physicist Jim Bergquist with the world's most accurate clock. The silver cylinder in the foreground is a magnetically shielded cryogenic … more

Mercury Atomic Clock Keeps Time with Record Accuracy
Release Date: 07/14/2006

BOULDER, COLO.—An experimental atomic clock based on a single mercury atom is now at least five times more precise than the national standard … more

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