Sandia National Laboratories Develops Heat-Resistant Photonic Cooling for Chip-Scale Quantum Sensing
Scientists at Sandia National Laboratories have made a significant advancement in laser photonic cooling for chips, crucial for developing rugged, chip-scale quantum inertial sensors. The team, led by quantum sensing scientist Jongmin Lee, has engineered a heat-resistant membrane-waveguide anchored by silicon pins. These pins act as heat sinks, effectively drawing heat away from the lasers used to trap and guide atoms. This innovation addresses a long-standing challenge in integrating photonic devices into vacuum environments, where heat dissipation is critical. The new design allows for efficient atom loading while maintaining structural integrity, a balance previously difficult to achieve. The research, published in AVS Quantum Science, demonstrates a method that uses significantly less power—roughly one-sixth to one-fourth—compared to previous approaches for trapping cesium atoms, marking a substantial step towards practical, low-power quantum sensors. This development is vital for creating compact and ...