Formation of superhydrophobic soda-lime glass surface using femtosecond laser pulses

MS Ahsan, F Dewanda, MS Lee, H Sekita… - Applied Surface …, 2013 - Elsevier
This paper demonstrates the fabrication of superhydrophobic soda-lime glass surface by
engineering periodic microgratings with self-formed periodic micro-ripples inside the …

Colorizing mechanism of brass surface by femtosecond laser induced microstructures

MS Ahsan, MS Lee - Optik-International Journal for Light and Electron …, 2013 - Elsevier
In this paper, we exhibit the colorizing of brass surfaces by forming femtosecond laser
induced microstructures on the sample surfaces. A variety of single colors such as brown …

Fabrication of Fresnel zone plate lens in fused silica glass using femtosecond laser lithography technology

IB Sohn, MS Ahsan, YC Noh, HK Choi… - Optical …, 2014 - spiedigitallibrary.org
This paper expresses maskless formation of Fresnel zone plate (FZP) lens on fused silica
glass surface using femtosecond laser lithography technology. The FZP lens consists of a …

Effect of environmental media on ablation rate of stainless steel under femtosecond laser multiple raster scans

Z Cui, W Wang, C Lin, B Xu - Chinese Optics Letters, 2015 - opg.optica.org
We investigate the influence of environmental media on ablation rate of AISI 443 stainless
steel under femtosecond (fs) laser single raster scan and multiple raster scans in air, water …

Formation mechanism of self-organized nanogratings on a titanium surface using femtosecond laser pulses

MS Ahsan, MS Lee - Optical Engineering, 2012 - spiedigitallibrary.org
We demonstrate the formation of self-organized nanogratings on a titanium surface under
the irradiation of a single-beam femtosecond laser. Self-formed, periodic nanogratings are …

[PDF][PDF] Formation of Periodic Micro/nano-holes Array in Boro-aluminosilicate Glass by Single-pulse Femtosecond Laser Machining.

MS Ahsan, K Yoon-Young, S Ik-Bu… - Journal of Laser Micro …, 2014 - jlps.gr.jp
This paper reports the formation of periodic micro/nano-holes on the surface of as well as
inside boro-aluminosilicate glass by controlling the irradiation conditions of a single-beam …

Formation mechanism of self-organized nano-ripples on quartz surface using femtosecond laser pulses

MS Ahsan, MS Lee, MK Hasan, YC Noh, IB Sohn… - Optik, 2015 - Elsevier
This article demonstrates the formation of self-organized nano-ripples on a quartz surface by
irradiation of femtosecond laser pulses. Self-oriented nano-ripples are printed on the quartz …

Diffraction efficiency enhancement of femtosecond laser-engraved diffraction gratings due to CO2 laser polishing

HK Choi, D Jung, IB Sohn, YC Noh, YT Lee… - Journal of the Korean …, 2014 - Springer
This research demonstrates laser-assisted fabrication of high-efficiency diffraction gratings
in fused-silica glass samples. Initially, femtosecond laser pulses are used to engrave …

Method and apparatus for high speed surface blackening and coloring with ultrafast fiber lasers

J Liu - US Patent 9,221,269, 2015 - Google Patents
Methods and systems for high speed surface blackening and/or coloring are disclosed,
including generating electromagnetic radiation from an ultrashort pulse laser (UPL); …

Femtosecond-laser-assisted fabrication of double-layer diffraction gratings inside fused silica glass

HK Choi, IB Sohn, YC Noh, YT Lee, JT Kim… - Journal of the Korean …, 2015 - Springer
We have fabricated double-layer diffraction gratings with a zigzag shape inside fused silica
glass by using a femtosecond laser, the intention of which is to overcome the hindrance of …