High-Density Regular Arrays Of Nanometer-Scale Rods Formed On Silicon Surfaces Via Femtosecond Laser Irradiation In Water
Document Type
Article
Publication Date
6-10-2008
Published In
Nano Letters
Abstract
We report on the formation of high-density regular arrays of nanometer-scale rods using femtosecond laser irradiation of a silicon surface immersed in water. The resulting surface exhibits both micrometer-scale and nanometer-scale structures. The micrometer-scale structure consists of spikes of 5−10 μm width, which are entirely covered by nanometer-scale rods that are roughly 50 nm wide and normal to the surface of the micrometer-scale spikes. The formation of the nanometer-scale rods involves several processes: refraction of laser light in highly excited silicon, interference of scattered and refracted light, rapid cooling in water, roughness-enhanced optical absorptance, and capillary instabilities.
Recommended Citation
M. Y. Shen et al.
(2008).
"High-Density Regular Arrays Of Nanometer-Scale Rods Formed On Silicon Surfaces Via Femtosecond Laser Irradiation In Water".
Nano Letters.
Volume 8,
Issue 7.
2087-2091.
DOI: 10.1021/nl080291q
https://works.swarthmore.edu/fac-physics/197