Research output: Contribution to journal › Article › peer-review
Picosecond laser writing of Ag−SiO2 nanocomposite nanogratings for optical filtering. / Andreeva, Yaroslava; Koval, Vladislav; Sergeev, Maksim; Veiko, Vadim P.; Destouches, Nathalie; Vocanson, Francis; Ma, Hongfeng; Loshachenko, Anton; Itina, Tatiana E.
In: Optics and Lasers in Engineering, Vol. 124, 105840, 01.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Picosecond laser writing of Ag−SiO2 nanocomposite nanogratings for optical filtering
AU - Andreeva, Yaroslava
AU - Koval, Vladislav
AU - Sergeev, Maksim
AU - Veiko, Vadim P.
AU - Destouches, Nathalie
AU - Vocanson, Francis
AU - Ma, Hongfeng
AU - Loshachenko, Anton
AU - Itina, Tatiana E.
N1 - Publisher Copyright: © 2019 Elsevier Ltd
PY - 2020/1
Y1 - 2020/1
N2 - In this article, we propose a novel approach for dielectric nanograting fabrication by direct laser patterning. Possibilities of a well-controlled ultra-short laser recording of Ag-SiO2 nanocomposite gratings and their optical properties are examined. The mechanisms of laser processing involve silver nanoparticle growth in nanoporous silica glass films and laser interference-based formation of a periodic grating-like nanorelief. It is shown that laser energy should stay below the surface ”grooves” formation threshold for laser-inscription of the interference-based grating. Otherwise, another periodic structure oriented parallel to the incident laser polarization appears to erase the interference pattern. The parameter windows required for the controlled fabrication of the obtained structures are determined. The required threshold decay with the number of applied laser pulses is explained by a similarity in the roles of the nanoparticle absorption and surface defect accumulation typically leading to such dependencies. The optical properties of the obtained gratings are shown to depend on the angle between the incidence plane and the grating direction. When these directions coincide, a signal enhancement with a period-dependent blue-shift is revealed in the diffuse scattering spectra. When these directions are perpendicular, the signal is less enhanced, and a red shift is observed. The observed results are promising in short laser fabrication of different optical components, such as reflective optical filters.
AB - In this article, we propose a novel approach for dielectric nanograting fabrication by direct laser patterning. Possibilities of a well-controlled ultra-short laser recording of Ag-SiO2 nanocomposite gratings and their optical properties are examined. The mechanisms of laser processing involve silver nanoparticle growth in nanoporous silica glass films and laser interference-based formation of a periodic grating-like nanorelief. It is shown that laser energy should stay below the surface ”grooves” formation threshold for laser-inscription of the interference-based grating. Otherwise, another periodic structure oriented parallel to the incident laser polarization appears to erase the interference pattern. The parameter windows required for the controlled fabrication of the obtained structures are determined. The required threshold decay with the number of applied laser pulses is explained by a similarity in the roles of the nanoparticle absorption and surface defect accumulation typically leading to such dependencies. The optical properties of the obtained gratings are shown to depend on the angle between the incidence plane and the grating direction. When these directions coincide, a signal enhancement with a period-dependent blue-shift is revealed in the diffuse scattering spectra. When these directions are perpendicular, the signal is less enhanced, and a red shift is observed. The observed results are promising in short laser fabrication of different optical components, such as reflective optical filters.
KW - Laser fabrication
KW - Laser surface structuring
KW - Nanocomposites
KW - Nanoparticles
KW - Silica glass
KW - NANOSTRUCTURES
KW - COMPOSITES
KW - MULTIBEAM INTERFERENCE
KW - METAMATERIALS
KW - TITANIUM
KW - SURFACE-STRUCTURES
KW - GLASS
KW - NANOPARTICLES
KW - IRRADIATION
KW - ABSORPTION
UR - http://www.scopus.com/inward/record.url?scp=85071398002&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/1898966f-4eaa-3730-8b83-6b76f2a59f2b/
U2 - 10.1016/j.optlaseng.2019.105840
DO - 10.1016/j.optlaseng.2019.105840
M3 - Article
AN - SCOPUS:85071398002
VL - 124
JO - Optics and Lasers in Engineering
JF - Optics and Lasers in Engineering
SN - 0143-8166
M1 - 105840
ER -
ID: 45984286