Paris, 23 April 2015

SWIFTS spectrometer to study earth tides and quakes

The world's smallest spectrometer has successfully measured tiny deformations of the Earth's crust, of the order of one millimeter, over a length of one thousand kilometers. Researchers at the Institut des Sciences de la Terre (CNRS/Université Joseph Fourier/IRD/IFSTTAR/Université de Savoie) and the Institut de Planétologie et d'Astrophysique de Grenoble (CNRS/Université Joseph Fourier) used the SWIFTS1 spectrometer to detect these as yet poorly understood movements. Their work2 is published on 23 April 2015 in the journal Optica.

To download the press release: SWIFTS


1Stationary-wave integrated Fourier transform spectrometer
2Carried out as part of labex OSUG@2020 at the Observatoire des Sciences de l'Univers, Grenoble.


Fabry–Perot optical fiber strainmeter with an embeddable, low-power interrogation system. Olivier Coutant, Mikhael De Mengin and Etienne Le Coarer. Optica, 23 April 2015.
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Researcher l Olivier Coutant l T +33 (0)4 76 63 52 53 l
Researcher l Etienne le Coarer l T +33 (0)4 76 63 58 98 l
CNRS Press Office l Alexiane Agullo l T +33 (0)1 44 96 43 90 l


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