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precision

Like the teeth of a comb, a microcomb consists of a spectrum of evenly distributed light frequencies. Optical atomic clocks can be built by locking a microcomb tooth to a ultranarrow-linewidth laser, which in turn locks to an atomic transition with extremely high frequency stability. That way, frequency combs act like a bridge between the atomic transition at an optical frequency and the clock signal at a radio frequency that is electronically detectable for counting the oscillations – enabling extraordinary precision. The researchers’ photonic chip, on the righthand side of the image, contains 40 microcombs generators and is only five millimeters wide.

Tiny Light-Based Chips Could Make Your GPS Accurate to the Centimeter

Categories Uncategorized

A microscopic view of the MagPatch array showing six of the eight microcoils used for nerve stimulation.

Microcoil Arrays Offer Targeted Treatment for Nervous System Disorders

Categories Brain & Behavior, Health, Technology

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