金属颗粒之间的光学力。
Optical forces between metallic particles.
作者信息
Hallock A J, Redmond P L, Brus L E
机构信息
Chemistry Department, Columbia University, New York, NY 10027, USA.
出版信息
Proc Natl Acad Sci U S A. 2005 Feb 1;102(5):1280-4. doi: 10.1073/pnas.0408604101. Epub 2005 Jan 12.
Abstract
We calculate the optical attractive forces that occur between 30-nm Au or Ag nanocrystals when irradiated at visible wavelengths. These forces show resonances at dipolar plasmon wavelengths, similar to resonances in the near-field electromagnetic intensities. At MW/cm2 intensities, optical forces can be stronger than van der Waals forces and could be used to organize metallic particles. We also suggest that photonucleation of organic crystals from supersaturated liquid solutions may be caused by optical forces.
摘要
我们计算了30纳米的金或银纳米晶体在可见光波长照射下产生的光学吸引力。这些力在偶极等离子体波长处出现共振，类似于近场电磁强度中的共振。在兆瓦每平方厘米的强度下，光学力可能比范德华力更强，可用于排列金属颗粒。我们还提出，过饱和液体溶液中有机晶体的光致成核可能是由光学力引起的。
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