Revealing all states of dewetting of a thin gold layer on a silicon surface by nanosecond laser conditioning

AbstractThis paper compares sub-micro/nano structure formation on polished silicon surface irradiated by nanosecond laser pulses in ambient air and distilled water. Surface cluster density and optical reflectivity of silicon surface (at a typical wavelength of λ = 632 nm) were studied in terms of number of laser pulses and laser fluence. The surface density and optical reflectivity give information on clusters filling factor and clusters height respectively. The results show that the values of surface cluster density and clusters height strongly depend on laser pulse numbers and interacting ambient. Comparing to air, distilled water as an interacting ambient can affect more significantly the clusters height.

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Modeling the effect of nanosecond laser conditioning on the femtosecond laser-induced damage of optical films

Optics Express ◽

10.1364/oe.23.014774 ◽

2015 ◽

Vol 23 (11) ◽

pp. 14774 ◽

Cited By ~ 5

Author(s):

Zehan Li ◽

Juan Du ◽

Yuanan Zhao ◽

Yueliang Wang ◽

Yuxin Leng ◽

...

Keyword(s):

Femtosecond Laser ◽

Nanosecond Laser ◽

Laser Conditioning ◽

Optical Films ◽

Laser Induced Damage

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Fabrication of black multicrystalline silicon surface by nanosecond laser ablation

Applied Physics B ◽

10.1007/s00340-011-4625-x ◽

2011 ◽

Vol 105 (3) ◽

pp. 545-550 ◽

Cited By ~ 21

Author(s):

D. A. Zuev ◽

O. A. Novodvorsky ◽

E. V. Khaydukov ◽

O. D. Khramova ◽

A. A. Lotin ◽

...

Keyword(s):

Laser Ablation ◽

Silicon Surface ◽

Multicrystalline Silicon ◽

Nanosecond Laser ◽

Nanosecond Laser Ablation

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Results of sub-nanosecond laser-conditioning of KD 2 PO 4 crystals

10.1117/12.696086 ◽

2006 ◽

Cited By ~ 8

Author(s):

J. J. Adams ◽

J. A. Jarboe ◽

C. W. Carr ◽

M. D. Feit ◽

R. P. Hackel ◽

...

Keyword(s):

Nanosecond Laser ◽

Laser Conditioning

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Numerical analyses on texture formation on the silicon surface irradiated by nanosecond laser

International Congress on Applications of Lasers & Electro-Optics ◽

10.2351/1.5066209 ◽

2002 ◽

Author(s):

Jun Maehara ◽

Takashi Yabe ◽

Ryuusuke Komura

Keyword(s):

Silicon Surface ◽

Numerical Analyses ◽

Nanosecond Laser ◽

Texture Formation

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Photoacoustic Generation Using Gold Nanostructure Fabricated by Femtosecond Laser

ASME/ISCIE 2012 International Symposium on Flexible Automation ◽

10.1115/isfa2012-7140 ◽

2012 ◽

Cited By ~ 1

Author(s):

Nan Wu ◽

Ye Tian ◽

Xiaotian Zou ◽

Xingwei Wang

Keyword(s):

Energy Density ◽

Femtosecond Laser ◽

Gold Film ◽

Laser Energy ◽

Quartz Substrate ◽

Acoustic Signals ◽

Gold Layer ◽

Laser Energy Density ◽

Nanosecond Laser ◽

Gold Nanostructure

Ultrasound generation through photoacoustic principle is a promising method for novel ultrasonic applications. This paper describes a photoacoustic generation method using gold nanostructure fabricated by a femtosecond laser. A nanopattern was fabricated on a quartz substrate. A gold film with a thickness of 50 nm was thermally deposited on the nanoparttern to form a gold nanostructure. The quartz substrate with the gold nanostructure was excited by a nanosecond laser to generate acoustic signals via photoacoustic principle. A quartz substrate coated with a 50 nm thickness gold layer was excited in the same condition for the comparison purpose. Experiment results showed that acoustic signals with amplitudes of 1.56 kPa at a distance of 1.5 mm away from the substrate were generated under the laser energy density of 0.27 mJ/cm2.

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