High-Finesse Optical Cavity
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Related Articles from SNS
Absolute Length Sensing in a Long-Baseline, High-Finesse Optical Cavity
arXiv:2606.09222v1 Announce Type: new Abstract: The relative phase between two lasers in transmission of an optical cavity can be used to continuously measure its absolute length with sub-micron precision. The first laser is kept on resonance with the cavity, while a second laser is phase-locked to the first with a frequency separation equal to an integer multiple of the cavity's initial free spectral range. As the free spectral range frequency changes due to cavity length changes, the...
Non-destructive cavity readout of molecules for precision measurements
arXiv:2606.01743v1 Announce Type: new Abstract: We propose a non-destructive method to measure the population of molecules in a selected rotational-hyperfine state by coupling them to a high-finesse optical cavity. In contrast to traditional techniques, our approach enables fast (less than 1 ms) repeated measurements with reduced heating and losses, and with precision below the standard quantum limit. The method is particularly advantageous for radioactive molecules, systems of high interest...