Fig. 1: Sr atomic clock optical beams emitted by integrated photonics.
From: Integrating planar photonics for multi-beam generation and atomic clock packaging on chip
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
