Strontium optical lattice clock research. A researcher holding a tube containing strontium chips,used in research on a new generation of atomic clocks applying optical lattice technology. Inside a strontium clock is an ion trap,where strontium ions oscillate between two energy levels in response to the light of a laser beam. Counting such oscillations is the basis for defining the standard second. Strontium optical clocks operate faster and more accurately than earlier atomic clocks. Photographed at the Foucault laboratory,SYRTE (Space-Time Reference Systems,Observatoire de Paris,France | |
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Credit: | Science Photo Library / LOOK AT SCIENCES / EURELIOS / PATRICE LATRON |
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