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"Optical Ruler" Could Revolutionize Precise Measurement

News   Jun 23, 2020 | Original story from the National Institute of Standards and Technology

 
"Optical Ruler" Could Revolutionize Precise Measurement

Part of the experimental setup to generate a set of stable frequencies in a cryogenically cooled laser microresonator frequency comb. The ring-shaped microresonator, small enough to fit on a microchip, operates at very low laser power and is made from the semiconductor aluminum gallium arsenide. Credit: NIST

 
 
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