https://www.nist.gov/publications/microresonator-frequency-comb-optical-clock
Microresonator frequency comb optical clock | NIST
Feb 19, 2017 - Optical frequency combs enable measurement precision at the 20th digit, and measurement accuracy entirely commensurate with their reference oscillator.
microresonator frequency comboptical clocknist
https://cordis.europa.eu/project/id/741149/es
Advanced clinical photoacoustic imaging systems based on optical microresonator detection |...
Photoacoustic imaging is widely viewed as one of the most exciting and promising biomedical imaging techniques to have emerged in recent years. It offers major...
photoacoustic imagingbased onadvancedclinicalsystems