MAKE A MEME View Large Image JILA's strontium optical atomic clock.jpg en JILA's strontium optical atomic clock is now the world's most accurate clock based on neutral atoms Shining a blue laser onto ultracold strontium atoms in an optical trap tests how efficiently a ...
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Keywords: JILA's strontium optical atomic clock.jpg en JILA's strontium optical atomic clock is now the world's most accurate clock based on neutral atoms Shining a blue laser onto ultracold strontium atoms in an optical trap tests how efficiently a previous burst of light from a red laser has boosted the atoms to an excited state Only those atoms that remain in the lower energy state respond to the blue laser causing the fluorescence seen here Credit Sebastian Blatt JILA University of Colorado National Science Foundation Sebastian Blatt JILA University of Colorado 2009-05-20 Public Domain PD-USGov Atomic clocks
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