排序方式: 共有6条查询结果,搜索用时 0 毫秒
1
1.
We analyze the electric field modes excited in resonant L-shaped gold nanoparticles using a finite-difference time domain method. Compared to a single gold nanorod, both the odd and even modes of the L-shaped nanoparticles can be excited due to the symmetry breaking. The nanoparticles with equal and unequal arms have different dependence of field enhancement and mode on the incident polarization. 相似文献
2.
3.
4.
使用100飞秒、1014 W/cm2的强激光与惰性气体Ar原子相互作用,我们利用飞行时间质谱仪结合Z扫描技术获得了各次电离的Ar原子在激光焦点附近不同位置处强度分布.测量得到的各个不同电离态Ar n+(n=1~4)的产额随激光焦点位置变化关系与不同电离态的空间分布理论预言相一致. 相似文献
5.
6.
Influence of the probe--sample interaction on scanning near-field optical microscopic images in the far field 下载免费PDF全文
We have studied the influence of probe--sample interaction in a scanning near-field
optical microscopy (SNOM) in the far field by using samples with a step structure.
For a sample with a step height of $\sim \lambda $/4, the SNOM image contrast
between the two sides of the step changes periodically at different scan heights.
For a step height of $\sim \lambda $/2, the image contrast remains approximately the
same. The probe--sample interaction determines the SNOM image contrast here. The
influence of different refractive indices of the sample has been also analysed by
using a simple theoretical model. 相似文献
1