Crystallization-dependent 100-nm periodic structures on gold and graphene based on femtosecond laser irradiation

Jiang, Shiru; Lee, Woo-Bin; Lee, Sang-Shin

doi:10.1016/j.optlastec.2024.110657

Optics & Laser Technology

2024

DOI: 10.1016/j.optlastec.2024.110657

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Crystallization-dependent 100-nm periodic structures on gold and graphene based on femtosecond laser irradiation

Shiru Jiang,

Woo-Bin Lee,

Sang-Shin Lee

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2024

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Cited by 3 publications

References 29 publications

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Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂

Chen,

Jiang,

Sun

et al. 2024

Laser & Photonics Reviews

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Nanostructures of noble metal offer an exciting opportunity to tune photoluminescence (PL) in 2D materials, which has shown promise for applications in plasmonic devices. However, an efficient, designable, residue‐free nanofabrication method remains challenging. Herein, a one‐step ultrafast laser nanofabrication method is performed in fabrication of laser induced periodic surface structure (LIPSS) with continuously tunable periods over a wide range (from 439 to 2086 nm) on Au. The process of LIPSS imprinting is revealed at different time scales: periodical energy deposition within hundreds of femtoseconds, phase transition after 10 ps, and resolidification after 200 ps. Furthermore, the intensity and peak shift of PL in monolayer MoS2 (1L‐MoS2) can be tuned by LIPSS, 11‐fold enhancement resulting from nanoscale confinement of the incident laser and exciton‐trion localized interconversion emanating from hot electron transfer and tensile strain. The results are promising for 2D‐materials/metal heterostructures to applications in plasmonic devices and nanophotonic integrated circuits.

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Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂

Chen,

Jiang,

Sun

et al. 2024

Laser & Photonics Reviews

View full text Add to dashboard Cite

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High-resolution, high-speed, chromotropic color printing based on fs-laser-induced gold/graphene HSFLs

Jiang,

Lee,

Aberdeen

et al. 2024

Photon. Res.

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Through achieving high-spatial-frequency laser-induced periodic surface structures (HSFLs) on a gold/graphene hybrid film, we introduce a high-speed, high-resolution, and wide-gamut chromotropic color printing technique. This method effectively addresses the trade-off between throughput and resolution in laser coloring. To realize Au HSFL, disordered lattice structures and high transmittance of amorphous Au (a-Au) thin film are used to overcome the rapid hot-electron diffusion and loss of plasmonic coherence typically observed on low-loss metal surfaces, respectively. Coupled with crystallization in Au and modulated surface plasmon polaritons by artificial “seed” pre-structure growing in a SiO2/Si substrate, HSFL emerged with a period of 100 nm on crystalline Au after single and rapid femtosecond laser scanning. This equips the proposed color printing with high-resolution and high-speed features simultaneously. In addition, the crystallization process is demonstrated to initiate change in the complex refractive index of Au, which causes wide-gamut colors. The chromotropic capability, which facilitates the background color to be tailored in color as well as into desirable shapes independently, enables three-level anti-counterfeiting based on the proposed color printing. Therefore, the proposed color printing is amenable for practical implementation in diverse applications, including security marking and data storage, ranging from nanoscale to large-scale fabrication.

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A Review of an Investigation of the Ultrafast Laser Processing of Brittle and Hard Materials

Feng,

Wang,

Liu

et al. 2024

Materials

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Ultrafast laser technology has moved from ultrafast to ultra-strong due to the development of chirped pulse amplification technology. Ultrafast laser technology, such as femtosecond lasers and picosecond lasers, has quickly become a flexible tool for processing brittle and hard materials and complex micro-components, which are widely used in and developed for medical, aerospace, semiconductor applications and so on. However, the mechanisms of the interaction between an ultrafast laser and brittle and hard materials are still unclear. Meanwhile, the ultrafast laser processing of these materials is still a challenge. Additionally, highly efficient and high-precision manufacturing using ultrafast lasers needs to be developed. This review is focused on the common challenges and current status of the ultrafast laser processing of brittle and hard materials, such as nickel-based superalloys, thermal barrier ceramics, diamond, silicon dioxide, and silicon carbide composites. Firstly, different materials are distinguished according to their bandgap width, thermal conductivity and other characteristics in order to reveal the absorption mechanism of the laser energy during the ultrafast laser processing of brittle and hard materials. Secondly, the mechanism of laser energy transfer and transformation is investigated by analyzing the interaction between the photons and the electrons and ions in laser-induced plasma, as well as the interaction with the continuum of the materials. Thirdly, the relationship between key parameters and ultrafast laser processing quality is discussed. Finally, the methods for achieving highly efficient and high-precision manufacturing of complex three-dimensional micro-components are explored in detail.

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Crystallization-dependent 100-nm periodic structures on gold and graphene based on femtosecond laser irradiation

Cited by 3 publications

References 29 publications

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂

High-resolution, high-speed, chromotropic color printing based on fs-laser-induced gold/graphene HSFLs

A Review of an Investigation of the Ultrafast Laser Processing of Brittle and Hard Materials

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Crystallization-dependent 100-nm periodic structures on gold and graphene based on femtosecond laser irradiation

Cited by 3 publications

References 29 publications

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS2

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS2

High-resolution, high-speed, chromotropic color printing based on fs-laser-induced gold/graphene HSFLs

A Review of an Investigation of the Ultrafast Laser Processing of Brittle and Hard Materials

Contact Info

Product

Resources

About

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂

Ultrafast‐Laser‐Induced Nanostructures with Continuously Tunable Period on Au Surface for Photoluminescence Control in Monolayer MoS₂