论文标题
拉曼质谱法在深脉冲光学晶格中通过振荡运动
Raman mass-spectrometry via oscillatory motion in deep pulsed optical lattices
论文作者
论文摘要
我们描述了一种新的光学诊断，用于通过测量被困在非常深的光学晶格中的原子和分子的运动来确定气体的组成。这种非谐音方法类似于常规的拉曼散射，但观察到的光谱特征与晶格中每个物种的振荡性质量运动有关，这是由它们各自的极化质量比率独特决定的。根据探测样品的密度，检测是通过高端的光学散射或下端的非共振电离发生的。我们表明，这种技术与常规的质谱技术互补，并设想其在现有工具中的实现。
We describe a new optical diagnostic for determining the composition of gases by measuring the motion of atoms and molecules trapped within very deep optical lattices. This non-resonant method is analogous to conventional Raman scattering, except that the observed spectral features relate to the oscillatory center-of-mass motion of each species within the lattice, determined uniquely by their respective polarizability-to-mass ratio. Depending on the density of the probed sample, detection occurs either via optical scattering at the high end or via non-resonant ionization at the lower end. We show that such a technique is complementary to conventional mass spectrometry techniques and envision its implementation in existing instruments.
