光原子時計は、通常400から1000 nmの波長の光学的または可視光領域で時計遷移を用います。9192631770 Hzの超微細遷移に基づく現在の標準セシウム時計とは対照的に、このような電磁振動はマルチテラヘルツです。振動周波数がはるかに高いため、今日の光時計はセシウム時計の精度を数桁上回っています。

Application Notes

• iQLOC: Ion Quantum Logic Optical Clock
• Using an Atomic Nucleus for Precise Time Measurement
• TECHNICAL ARTICLE: Ultrastable, ultraprecise, portable: How commercial ultrastable laser systems enable high-end optical clock applications
• SCIENTIFIC PUBLICATION: Real-time phase tracking for wide-band optical frequency measurements at the 20th decimal place
• SCIENTIFIC PUBLICATION: Demonstration of 4.8 × 10E−17 stability at 1 s for two independent optical clocks
• SCIENTIFIC PUBLICATION: Space-borne frequency comb metrology
• SCIENTIFIC PUBLICATION: 20 Years and 20 Decimal Digits: A Journey With Optical Frequency Combs