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# Cryogenic-photonic-resonators-with-ultralow-frequency-drift.png

## Appears In

                        - Chip-scale ultraprecise laser technologies 

**Cryogenic photonic resonators with ultralow frequency drift.** (a) Photonic resonators shaped for optimum insensitivity to environmental vibration. (b) Demonstration of 100,000 finesse with an optical ringdown measurement. (c) Thermal isolation system for operating the photonic resonator in a cryogenic environment. (d) Measurement of frequency drift between the cryogenic photonic resonator and the silicon cavity at JILA. The 4 mHz/s drift corresponds to 10 a remarkably low fractional frequency drift rate of 10-17/s.

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