atomic frequency

atomic frequency

[ə¦täm·ik ′frē·kwən·sē]
(solid-state physics)
One of the vibrational frequencies of an atom in a crystal lattice.
References in periodicals archive ?
In particular, the technology is an integral part of the so-called "high-precision clock", or atomic frequency standards, which are already created in Russia.
Allan, "Statistics of Atomic Frequency Standards," Proceedings of the IEEE, vol.
Government-sponsored effort to develop a low-power, miniature, affordable precision atomic frequency reference.
The NPE consists of several transmitter units and the mission data unit, both designed and built by ITT; Atomic Frequency Time Standard; passive RF components and various harnesses and cables.
If the RF oscillator is phase-locked to an atomic frequency standard, the comb will form an accurate frequency ruler covering the entire near infrared region from 1100 nm to 2200 nm.
Designed for ease of integration into frequency and timing systems, the 8130A offers a smaller size MIL atomic frequency reference.
Instead of measuring the distance an atom falls in a certain amount of time," Chu explained, "our atomic gravity meter measures the change in velocity during a given time by measuring the Doppler shift of a very well-known atomic frequency.
Excelitas to Distribute AccuBeat's Rubidium Atomic Frequency and Timing Products for Military Applications in the United States and Canada
Tender issueH2020 WP15 H002 - Robust RAFS and On-Board Clock Ensemble (RRAFS ONCLE) Framework: This framework will implement activities covering the development of the Galileo 2nd Generation Robust Rubidium Atomic Frequency Standard Clock and the development of the Galileo2nd Generation On-Board new generation Clock Monitoring and Control Unit and all relevant tests.
The average pitch obtained by the process, nominally half the laser wavelength, is simply traceable with small uncertainty to an atomic frequency and hence can be known with very high accuracy.
LOS ANGELES -- AEi Systems, the world leader in worst case circuit analysis (WCCA), has completed electrical stress & derating, reliability, failure mode, and worst case circuit analyses for PerkinElmer's Rubidium Atomic Frequency Standard (RAFS), a critical portion of the GPS III satellite program.
NIST has achieved a technical milestone in its push to develop optical atomic frequency standards and clocks.