High-density regular arrays of nanometer-scale rods formed on silicon surfaces via femtosecond laser irradiation in water

Mengyan Shen; James E. Carey; Catherine H. Crouch; Maria Kandyla; Howard A. Stone; Eric Mazur

doi:10.1021/nl080291q

High-density regular arrays of nanometer-scale rods formed on silicon surfaces via femtosecond laser irradiation in water

Mengyan Shen, James E. Carey, Catherine H. Crouch, Maria Kandyla, Howard A. Stone, Eric Mazur

Research output: Contribution to journal › Article › peer-review

169 Scopus citations

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.

Original language	English (US)
Pages (from-to)	2087-2091
Number of pages	5
Journal	Nano Letters
Volume	8
Issue number	7
DOIs	https://doi.org/10.1021/nl080291q
State	Published - Jul 1 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

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10.1021/nl080291q

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title = "High-density regular arrays of nanometer-scale rods formed on silicon surfaces via femtosecond laser irradiation in water",

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.",

author = "Mengyan Shen and Carey, {James E.} and Crouch, {Catherine H.} and Maria Kandyla and Stone, {Howard A.} and Eric Mazur",

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T1 - High-density regular arrays of nanometer-scale rods formed on silicon surfaces via femtosecond laser irradiation in water

AU - Shen, Mengyan

AU - Carey, James E.

AU - Crouch, Catherine H.

AU - Kandyla, Maria

AU - Stone, Howard A.

AU - Mazur, Eric

PY - 2008/7/1

Y1 - 2008/7/1

N2 - 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.

AB - 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.

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High-density regular arrays of nanometer-scale rods formed on silicon surfaces via femtosecond laser irradiation in water

Abstract

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