Time/Frequency and Optical Metrology

Image LTF

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

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18-22.09.2023 : XLII Symposium sur les instruments scientifiques, Palerme, Italie


11-15.09.2023 : EOSAM 2023, Dijon, France


26-30.06.2023 : CLEO Europe 2023, Munich, Germany


15-19.05.2023 : IEEE IFCS-EFTF 2023, Toyama, Japan


26-31.03.2023 : Ultrafast Optics XIII, Bariloche, Argentine


17.11.2022 : UFFC-S Virtual Lecturer Education Series, Prof. Gaetano Mileti


28.08-02.09.2022 : Europhoton 2022, Hannover, Germany


19-24.06.2022 : Optical Interference Coatings Conference, British Columbia, Canada


21.06.2022 : Final symposium MacQsimal, Unimail, Neuchâtel Suisse


07-10.06.2022 : MUST2022, Grindelwald, Switzerland


15-20.05.2022 : CLEO 2022, San Jose, California (USA)





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


25.11.2022 : Remise des titres et prix académiques 2022








27.06.2022 : De nouvelles horloges atomiques miniatures bientôt sur le marché, presse release


21.06.2022 : Capteurs quantiques à vapeur de rubidium et leur limite quantique, Alice Sinatra & Jacques Haesler, photos, vidéo


16.06.2022 : Un laser à flashes ultrarapides toujours plus puissants


11.11.2021 : The Institute of Physics and the macQsimal project participated in the Swiss Future Day. Eight youngster discovered the research activities at LTF.




27.09.2021 : Cycle de conférence, La mesure du temps, hier, aujourd'hui et demain, Dr Salomon, Unimail, Neuchâtel (photos et vidéo 1 et 2)


The watchmaking know-how of the canton of Neuchâtel and the Time-Frequency Laboratory (LTF) : interview 1 et 2


05.05.2021 L'Observatoire cantonal de Neuchâtel a vécu de 1858 à 2007, interview du Professeur Mileti


22.04.2021 Etienne Batori wins the UniNE preselection of ma thèse en 180 sécondes.

Watch Etienne's performance

Watch the full event



05.04.2021 : C'est quoi une onde ? Emission CQFD, RTS