Time/Frequency and Optical Metrology

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The Time-Frequency and Optical Metrology Centre explores and pushes the frontiers in time and frequency measurement, photonics, and optical metrology. For these purposes, the Centre brings together more than 25 researchers who have a strong collective experience in various areas of metrology and photonics, such as the development and evaluation of optical frequency combs, primary atomic clocks, compact atomic frequency standards, as well as stabilized and ultrafast lasers.

The Centre receives strong support from the Swiss Confederation and prestigious external funding. For example, its collaborators are involved in research funded by the European Community for the development of optical frequency combs in the extreme ultra-violet based on high harmonic generation, as well as for the European Space Agency (ESA) spanning from the quest for ultimate precision using atomic clocks to the development of stabilized lasers for environmental monitoring from space-borne differential LIDAR instruments. They are also working on novel ultrafast laser technologies for frequency combs and new atomic clocks that should allow positioning resolution down to the meter in the European Galileo global navigation satellite system. Via various projects the Centre is collaborating with local and national specialized industry, thus supporting technology transfer and promoting innovation.

Further information

Watch the video


24-27.06.2024 : EFTF 202437th European Frequency and Time Forum Neuchâtel, Switzerland


22-23.06.2024 : Les 24h du temps, Granvelle, Besançon (France) 


06.02.2024 : L'Observatoire de Neuchâtel, star d'un événement culturel "majeur" en 2026interview de Julien Gressot sur RTN


31.01.2024 : La mesure du temps et la recherche sur les horloges atomiques à Neuchâtel, conférence, Musée d'histoire naturelle de Neuchâtel

Interview du Prof. Gaetano Mileti




18.06.2024 : Neuchâtel attend 450 spécialistes dans la mesure du temps :



13.03.2024 : Neuchâtel, capitale de l'horloge atomique, Prof. Gaetano Mileti, interview, Canal Alpha


13.12.2023 : GPS, GNSS et précision : une question de timing, Prof. Gaetano Mileti, podcast, Nakan.ch


02.10.2023 : Horloges atomiques : une stabilité venue du froid, Dr Etienne Batori


30.03.2023 : Ma thèse en 180 secondes : Roman Blum, doctorant du Laboratoire Temps-Fréquence, obtient le premier prix !








21.03.2023 : Le Temps, entre Physique et Philosophie, Damiano Costa, vidéo


Janvier 2023 : Horloge atomique miniature en voie de commercialisation, Journal En Direct