a The photonics geometry as part of the strontium clock, showing the four types of beams including a pair of the red and blue beams at 0° (light color) and 45° (dark color), as well as the collinearly combined lattice and clock beams (yellow). b Measured trajectories of the twelve blue and red MOT beams, overlayed on an image of the PIC. Scale bar is 5 mm. c Measured trajectories of the lattice (green) and clock (red) beams below and above the MS (yellow region depicts the overlap of the two beams). Scale bar is 100 µm

Compact Photonic Chip System Brings Miniaturized Atomic Clocks Closer to Reality

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Researchers have developed a groundbreaking compact photonic chip system that paves the way for miniaturized strontium atomic clocks. The achievement has significant implications for atomic technologies, as miniaturization could lead to a range of benefits in applications such as GPS and communication systems.

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