Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers
Despite intensive research activities in the field of laser-induced periodic surface structures (LIPSS), the large-area nanostructuring of glasses is still a challenging problem, which is mainly caused by the strongly non-linear absorption of the laser radiation by the dielectric material. Therefore...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/6/1187 |
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| author | Clemens Kunz Sebastian Engel Frank A. Müller Stephan Gräf |
| author_facet | Clemens Kunz Sebastian Engel Frank A. Müller Stephan Gräf |
| author_sort | Clemens Kunz |
| collection | DOAJ |
| description | Despite intensive research activities in the field of laser-induced periodic surface structures (LIPSS), the large-area nanostructuring of glasses is still a challenging problem, which is mainly caused by the strongly non-linear absorption of the laser radiation by the dielectric material. Therefore, most investigations are limited to single-spot experiments on different types of glasses. Here, we report the homogeneous generation of LIPSS on large-area surfaces of fused silica using thin gold layers and a fs-laser with a wavelength <i>λ</i> = 1025 nm, a pulse duration <i>τ</i> = 300 fs, and a repetition frequency <i>f</i><sub>rep</sub> = 100 kHz as radiation source. For this purpose, single-spot experiments are performed to study the LIPSS formation process as a function of laser parameters and gold layer thickness. Based on these results, the generation of large-area homogenous LIPSS pattern was investigated by unidirectional scanning of the fs-laser beam across the sample surface using different line spacing. The nanostructures are characterized by a spatial period of about 360 nm and a modulation depth of around 160 nm. Chemical surface analysis by Raman spectroscopy confirms a complete ablation of the gold film by the fs-laser irradiation. The characterization of the functional properties shows an increased transmission of the nanostructured samples accompanied by a noticeable change in the wetting properties, which can be additionally modified within a wide range by silanization. The presented approach enables the reproducible LIPSS-based laser direct-writing of sub-wavelength nanostructures on glasses and thus provides a versatile and flexible tool for novel applications in the fields of optics, microfluidics, and biomaterials. |
| first_indexed | 2024-03-10T19:02:54Z |
| format | Article |
| id | doaj.art-149cf3814a16451f88071497381ba5ce |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-03-10T19:02:54Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-149cf3814a16451f88071497381ba5ce2023-11-20T04:16:04ZengMDPI AGNanomaterials2079-49912020-06-01106118710.3390/nano10061187Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold LayersClemens Kunz0Sebastian Engel1Frank A. Müller2Stephan Gräf3Otto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, GermanyOtto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, GermanyOtto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, GermanyOtto Schott Institute of Materials Research (OSIM), Friedrich Schiller University Jena, Löbdergraben 32, 07743 Jena, GermanyDespite intensive research activities in the field of laser-induced periodic surface structures (LIPSS), the large-area nanostructuring of glasses is still a challenging problem, which is mainly caused by the strongly non-linear absorption of the laser radiation by the dielectric material. Therefore, most investigations are limited to single-spot experiments on different types of glasses. Here, we report the homogeneous generation of LIPSS on large-area surfaces of fused silica using thin gold layers and a fs-laser with a wavelength <i>λ</i> = 1025 nm, a pulse duration <i>τ</i> = 300 fs, and a repetition frequency <i>f</i><sub>rep</sub> = 100 kHz as radiation source. For this purpose, single-spot experiments are performed to study the LIPSS formation process as a function of laser parameters and gold layer thickness. Based on these results, the generation of large-area homogenous LIPSS pattern was investigated by unidirectional scanning of the fs-laser beam across the sample surface using different line spacing. The nanostructures are characterized by a spatial period of about 360 nm and a modulation depth of around 160 nm. Chemical surface analysis by Raman spectroscopy confirms a complete ablation of the gold film by the fs-laser irradiation. The characterization of the functional properties shows an increased transmission of the nanostructured samples accompanied by a noticeable change in the wetting properties, which can be additionally modified within a wide range by silanization. The presented approach enables the reproducible LIPSS-based laser direct-writing of sub-wavelength nanostructures on glasses and thus provides a versatile and flexible tool for novel applications in the fields of optics, microfluidics, and biomaterials.https://www.mdpi.com/2079-4991/10/6/1187nanostructuringfemtosecond laserlaser-induced periodic surface structuresthin gold layertransmissionwettability |
| spellingShingle | Clemens Kunz Sebastian Engel Frank A. Müller Stephan Gräf Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers Nanomaterials nanostructuring femtosecond laser laser-induced periodic surface structures thin gold layer transmission wettability |
| title | Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers |
| title_full | Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers |
| title_fullStr | Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers |
| title_full_unstemmed | Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers |
| title_short | Large-Area Fabrication of Laser-Induced Periodic Surface Structures on Fused Silica Using Thin Gold Layers |
| title_sort | large area fabrication of laser induced periodic surface structures on fused silica using thin gold layers |
| topic | nanostructuring femtosecond laser laser-induced periodic surface structures thin gold layer transmission wettability |
| url | https://www.mdpi.com/2079-4991/10/6/1187 |
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