scholarly journals Femtosecond laser patterning, synthesis, defect formation, and structural modification of atomic layered materials

MRS Bulletin ◽  
2016 ◽  
Vol 41 (12) ◽  
pp. 1002-1008 ◽  
Author(s):  
Jae-Hyuck Yoo ◽  
Eunpa Kim ◽  
David J. Hwang
Keyword(s):  
Femtosecond Laser ◽  
Structural Modification ◽  
Defect Formation ◽  
Layered Materials ◽  
Laser Patterning ◽  
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Abstract

Structural Modification of PECVD As50S50 Chalcogenide-Glass Films by Femtosecond Laser Radiation

2018 ◽  
Vol 124 (5) ◽  
pp. 741-747 ◽  
Author(s):  
A. V. Romashkin ◽  
A. A. Murzanev ◽  
A. M. Kiselev ◽  
A. I. Korytin ◽  
M. A. Kudryashov ◽  
...  
Keyword(s):  
Laser Radiation ◽  
Femtosecond Laser ◽  
Chalcogenide Glass ◽  
Structural Modification ◽  
Femtosecond Laser Radiation ◽  
Glass Films

An improved multi-exposure approach for high quality holographic femtosecond laser patterning

2014 ◽  
Vol 105 (22) ◽  
pp. 221104 ◽  
Author(s):  
Chenchu Zhang ◽  
Yanlei Hu ◽  
Jiawen Li ◽  
Zhaoxin Lao ◽  
Jincheng Ni ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
High Quality ◽  
Laser Patterning

scholarly journals Solar Cells: Lateral Dye-Sensitized Microscale Solar Cells via Femtosecond Laser Patterning (Adv. Mater. Technol. 6/2016)

2016 ◽  
Vol 1 (6) ◽  
Author(s):  
Xi Zhang ◽  
Yinggang Huang ◽  
Hao Bian ◽  
Hewei Liu ◽  
Xuezhen Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Femtosecond Laser ◽  
Dye Sensitized ◽  
Laser Patterning

scholarly journals Laser-assisted fabrication of gold nanoparticle-composed structures embedded in borosilicate glass

2017 ◽  
Vol 8 ◽  
pp. 2454-2463 ◽  
Author(s):  
Nikolay Nedyalkov ◽  
Mihaela Koleva ◽  
Nadya Stankova ◽  
Rosen Nikov ◽  
Mitsuhiro Terakawa ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Optical Properties ◽  
Femtosecond Laser ◽  
Borosilicate Glass ◽  
Glass Sample ◽  
Defect Formation ◽  
Laser Pulses ◽  
Femtosecond Laser Irradiation ◽  
Nanosecond Pulses ◽  
Wide Range

We present results on laser-assisted formation of two- and three-dimensional structures comprised of gold nanoparticles in glass. The sample material was gold-ion-doped borosilicate glass prepared by conventional melt quenching. The nanoparticle growth technique consisted of two steps – laser-induced defect formation and annealing. The first step was realized by irradiating the glass by nanosecond and femtosecond laser pulses over a wide range of fluences and number of applied pulses. The irradiation by nanosecond laser pulses (emitted by a Nd:YAG laser system) induced defect formation, expressed by brown coloration of the glass sample, only at a wavelength of 266 nm. At 355, 532 and 1064 nm, no coloration of the sample was observed. The femtosecond laser irradiation at 800 nm also induced defects, again observed as brown coloration. The absorbance spectra indicated that this coloration was related to the formation of oxygen deficiency defects. After annealing, the color of the irradiated areas changed to pink, with a corresponding well-defined peak in the absorbance spectrum. We relate this effect to the formation of gold nanoparticles with optical properties defined by plasmon excitation. Their presence was confirmed by high-resolution TEM analysis. No nanoparticle formation was observed in the samples irradiated by nanosecond pulses at 355, 532 and 1064 nm. The optical properties of the irradiated areas were found to depend on the laser processing parameters; these properties were studied based on Mie theory, which was also used to correlate the experimental optical spectra and the characteristics of the nanoparticles formed. We also discuss the influence of the processing conditions on the characteristics of the particles formed and the mechanism of their formation and demonstrate the fabrication of structures composed of nanoparticles inside the glass sample. This technique can be used for the preparation of 3D nanoparticle systems embedded in transparent materials with potential applications in the design of new optical components, such as metamaterials and in plasmonics.

scholarly journals Bactericidal surfaces prepared by femtosecond laser patterning and layer-by-layer polyelectrolyte coating

2020 ◽  
Vol 575 ◽  
pp. 286-297
Author(s):  
Chao Chen ◽  
Alessandro Enrico ◽  
Torbjörn Pettersson ◽  
Monica Ek ◽  
Anna Herland ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Layer By Layer ◽  
Laser Patterning
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