Planar-Integrated Magneto-Optical Trap

The magneto-optical trap (MOT) is an essential tool for collecting and preparing cold atoms with a wide range of applications. We demonstrate planar-integrated MOT by combining optical grating chip magnetic coil chip. flat simplifies the conventional six-beam configuration down to single laser beam, replaces anti-Helmholtz coils cylindrical geometry. Up ${10}^{6}$ ${}^{87}\mathrm{Rb}$ are trapped MOT, atom cloud being approximately $6\phantom{\rule{0.2em}{0ex}}\mathrm{mm}$ above surface. This effectively reduces volume, weight, complexity bringing benefits applications including gravimeter, clock, quantum memory devices.