Making perfectly controlled arrays of molecules at rest
Making perfectly controlled arrays of molecules at rest
复制标题
制作完美受控的静止分子阵列
DOI：
10.1126/science.aay3989
复制
发表时间：
2019
期刊：
影响因子：
56.9
通讯作者：
Kotochigova, Svetlana
中科院分区：
文献类型：
--
作者：
Kotochigova, Svetlana
自20世纪70年代早期发明以来，光镊已经从简单的操作发展到对光学捕获物体施加校准的力并测量其纳米级位移。光镊使用激光来创建一个力阱，可以容纳纳米到微米大小的电介质物体（1）。它们可以非侵入性地操纵物体，如水中的生物细胞，以及对溶液或自由空间中的单个分子施加皮牛顿力。将这些光学陷阱与激光冷却相结合，可以阻止原子和小分子在超冷温度下在自由空间中移动，从而实现精确测量。第1156章这一次，安德雷吉特(2)创造了一个充满超冷氟化钙（CaF）分子的光镊阵列。单个分子通过镊子陷阱聚集在一起，使它们能够相互作用。这种前所未有的控制应该允许对分子碰撞进行高精度观测，并可以深入了解特定的化学反应。
Since their invention in the early 1970s, optical tweezers have evolved from enabling simple manipulation to applying calibrated forces on—and measuring nanometer-level displacements of—optically trapped objects. Optical tweezers use laser light to create a force trap that can hold nanometer- to micrometer-sized dielectric objects (1). They can noninvasively manipulate objects such as biological cells in water, as well as apply piconewton forces to single molecules in solution or in free space. Combining these optical traps with laser cooling, which stops atoms and small molecules from moving in free space at ultracold temperatures, allows for precision measurements. On page 1156 of this issue, Anderegget al.(2) created an array of optical tweezers filled with ultracold calcium monofluoride (CaF) molecules. Individual molecules were brought together by tweezer traps, enabling their interaction. Such unprecedented control should allow high-precision observations of molecular collisions and could provide insight into specific chemical reactions.
影响因子：
19.6
作者：
S. Truppe;H. Williams;M. Hambach;L. Caldwell;N. Fitch;E. Hinds;B. Sauer;M. Tarbutt
通讯作者：
S. Truppe;H. Williams;M. Hambach;L. Caldwell;N. Fitch;E. Hinds;B. Sauer;M. Tarbutt
影响因子：
64.8
作者：
Bernien, Hannes;Schwartz, Sylvain;Lukin, Mikhail D.
通讯作者：
Lukin, Mikhail D.
影响因子：
4.4
作者：
Kendrick, Brian K.
通讯作者：
Kendrick, Brian K.