Frequency combs generated by femtosecond lasers are powerful tools for high-precision optical spectroscopy and metrology. Theodor Hänsch, who received part of the Nobel Prize for Physics in 2005 for his work in this field, spoke to Nature Photonics about how frequency combs have changed science.
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Horiuchi, N. The impact of frequency combs. Nature Photon 5, 193 (2011). https://doi.org/10.1038/nphoton.2011.47
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DOI: https://doi.org/10.1038/nphoton.2011.47
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