Studies in Spectroscopy and Quantum Electronics

该提案是“光谱学和量子电子学研究”，并继续在激光冷却和俘获方面富有成效和令人兴奋的计划。冷却和俘获过程的研究旨在将拉曼冷却与偶极子俘获相结合的技术扩展到高密度的亚微开尔文温度。捕获的原子将用于研究亚微开尔文温度范围内的原子/原子碰撞和亚纳米开尔文温度范围内原子/表面与原子的碰撞。冷却和捕获的原子也被用于研究精确时间测量的原子干涉仪和用于超灵敏重力仪的原子干涉仪的构造。最后，操纵原子的技术正在扩展到操纵生物分子，以研究酶的运动和测量生物分子上的力。

This proposal is for "Studies in Spectroscopy and Quantum Electronics" and continues a productive and exciting program in laser cooling and trapping. The studies of the cooling and trapping process are aimed at extending the technique of Raman cooling combined with dipole trapping to reach sub- microkelvin temperatures at high densities. The trapped atoms will be use to study atom/atom collisions in the sub micro-Kelvin temperature range and atom/surface collisions with atoms in the sub nano-kelvin temperature range. The cooled and trapped atoms are also being used to study atom interferometry for precision time measurements and for the construction of an atom interferometer for an ultra- sensitive gravimeter. Finally, the techniques for manipulating atoms are being extended to the manipulation of biological molecules to study the motion of enzymes and to measure forces on biological molecules.