NIST's 3 Clock Comparison (IMAGE)

National Institute of Standards and Technology (NIST)

NIST's 3 Clock Comparison

Caption

NIST researchers precisely compared the signals from three optical atomic clocks over air and optical fiber, with two of the clocks (indicated by Yb and Al+/Mg+) located in different NIST-Boulder laboratories, and a third (Sr) located 1.5 kilometers away at JILA.

Credit

Hanacek/NIST

Usage Restrictions

Please use correct image credit

License

Licensed content

Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.