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Frequency combs

Combs for dark energy

By using laser frequency combs to stabilize astronomical spectrometers, it may be possible to better understand our expanding Universe.

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Figure 1: In situ calibration of an astronomical spectrometer.

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Schibli, T. Combs for dark energy. Nature Photon 2, 712–713 (2008). https://doi.org/10.1038/nphoton.2008.240

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