Optical manipulation of CuCl nanoparticles under an excitonic resonance condition in superfluid helium
Optical manipulation of CuCl nanoparticles under an excitonic resonance condition in superfluid helium
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DOI：
10.1002/pssb.200672125
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发表时间：
2006-11-01
影响因子：
1.6
通讯作者：
Itoh, T.
中科院分区：
文献类型：
--
作者：
Inaba, K.;Imaizumi, K.;Itoh, T.
为了制备共振光学操纵的最佳条件，在超流氦中用激光烧蚀法从大块样品中直接制备了大量的CuCl粒子，其尺寸分布范围从10 nm到10 μ m。我们用覆盖小于100 nm的粒子的激子共振能级的激光照射这些粒子，以便通过使用共振辐射力将它们传输到目标硅衬底上。结果，我们已经观察到许多直径为10至50 nm的颗粒粘附到基材上。这意味着这些纳米粒子是由比重力强得多的共振辐射力传输的。(c)2006 WILEY-VCH Verlag GmbH & Co. KGaA，魏因海姆。
In order to prepare the optimal condition for the resonant optical manipulation, a lot of CuCl particles with a broad size-distribution ranging from 10 nm to 10 mu m have been directly fabricated from a bulk sample by laser ablation in superfluid helium. We irradiated these particles with the laser light covering the excitonic resonance levels of particles smaller than 100 nm in order to transport them onto a target silicon substrate by using resonant radiation force. As a result, we have observed that many particles of from 10 to 50 nm diameters adhere to the substrate. This means that these nanoparticles are transported by the resonant radiation force much stronger than the gravitational force. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.