Department of Chemical Physics, The Weizmann Institute of Science, Rehovot 76100, Israel.
Phys Rev Lett. 2010 Apr 16;104(15):153001. doi: 10.1103/PhysRevLett.104.153001. Epub 2010 Apr 12.
We consider deflection of polarizable molecules by inhomogeneous optical fields, and analyze the role of molecular orientation and rotation in the scattering process. We show that by preshaping molecular angular distribution with the help of short and strong femtosecond laser pulses, one may efficiently control the scattering process, manipulate the average deflection angle and its distribution, and reduce substantially the angular dispersion of the deflected molecules. This opens new ways for many applications involving molecular focusing, guiding, and trapping by optical and static fields.
我们考虑了各向异性光学场中可极化分子的偏转，并分析了分子取向和旋转在散射过程中的作用。我们表明，通过短而强的飞秒激光脉冲来预先形成分子角分布，可以有效地控制散射过程，操纵平均偏转角度及其分布，并大大减少偏转分子的角度分散。这为涉及光学和静态场中分子聚焦、引导和捕获的许多应用开辟了新的途径。
