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What is an Optical Clock?
An optical clock is a highly precise timekeeping system that uses an optical-frequency transition in atoms or ions as its frequency reference. Because optical frequencies are much higher than those used in conventional atomic clocks, optical clocks can achieve exceptionally high levels of accuracy and stability.
Optical clocks are used as advanced frequency references for precision timekeeping, time and frequency metrology, fundamental physics, and quantum technologies.
HOW an Optical Clock Works
An optical clock works by locking a highly stable laser to a narrow optical transition in atoms or ions, creating an exceptionally precise frequency reference.
Atom or ion preparation
Atoms or ions are isolated and controlled, often using laser cooling and trapping techniques to minimize external disturbances.
Optical transition
A narrow-linewidth laser interacts with the atoms or ions and is tuned to a highly stable optical transition between two energy levels.
Frequency stabilization
The laser frequency is continuously locked to the atomic transition. The resulting optical frequency provides an extremely stable reference that can be converted into a time scale.
What are the APPLICATIONS using Optical Clock?
