Ultraviolet pulsed laser interference lithography and application of periodic structured Ag-nanoparticle films for surface-enhanced Raman spectroscopy

Bai, Shi; Zhou, Weiping; Lin, Yuanhai; Zhao, Yan; Chen, Tao; Hu, Anming; Duley, W. W.

doi:10.1007/s11051-014-2470-7

Cited by 23 publications

(15 citation statements)

References 43 publications

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“…1a while smaller, less concentrated particles appear darker in the interfringe regions due to different light intensities [15]. However, all particles formed were smaller than 100 nm, which differs from our previous reports where larger particles were formed through the joining of small nanoparticles under nanosecond laser heating [15]. Herein, the well-dispersed and small-sized nanoparticles are probably attributable to the coating effect of PVP.…”

Section: Laser Reductionmentioning

confidence: 62%

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Two-Step Photonic Reduction of Controlled Periodic Silver Nanostructures for Surface-Enhanced Raman Spectroscopy

et al. 2015

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Silver nanoparticle surface morphologies can be controlled using ultraviolet light or visible light-emitting diode (LED)-assisted photonic reduction of Ag ions in solution. Ultraviolet nanosecond laser interference lithography (LIL) is a cost-effective method for fabricating periodic structures in a polymer matrix, and in this work, we combine with photonic reduction to produce novel nanostructured substrates. Differing reduction times result in differing fringe widths and nanoparticle sizes, with nanoparticle shape gradually changing from spherical to plate-shaped with increasing (365 to 615 nm) excitation wavelengths. Such nanostructured substrates, when utilized for surface-enhanced Raman spectroscopy (SERS), realized analytical enhancement factors for naproxen of about 10 5 with plate-shaped nanoparticles, which was at least ten times greater than the enhancement afforded by spherical nanoparticles. A three-dimensional finite element method simulating localized surface plasmon resonance properties of these controlled silver structures demonstrated nanostructured plates effectively enhanced local electrical fields. Our results demonstrate that multi-wavelength photonic reduction integrated with LIL is an excellent means of providing sensitive substrates for SERS.

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Section: Laser Reductionmentioning

confidence: 62%

“…Based on previous studies [9,15], 3.8 wt% AgNO 3 was dissolved in polymer matrix with samples reduced for 1 min by laser. SEM images of the periodic (grating-like) structure produced after laser reduction (Fig.…”

Section: Laser Reductionmentioning

confidence: 99%

Two-Step Photonic Reduction of Controlled Periodic Silver Nanostructures for Surface-Enhanced Raman Spectroscopy

et al. 2015

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“…LIL is a powerful tool for uniform large‐scale micro/nano‐structure fabrication. To achieve smaller features, pre/post‐processing is applied …”

Section: Application Case Studiesmentioning

confidence: 99%

“…Figure 6a indicates periodic gratings on Ag‐nanoparticle film fabricated by dual‐beam nanosecond pulsed‐laser LIL . The Ag nanoparticles are pre‐distributed onto the sample surface by a modified solution‐evaporation method of Ag‐nanoparticle colloids.…”

Section: Application Case Studiesmentioning

confidence: 99%

Parallel Laser Micro/Nano‐Processing for Functional Device Fabrication

Hong

2020

Laser & Photonics Reviews

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Photolithography is one of the most commonly used techniques in semiconductor manufacturing, which is the foundation for all the modern electronic device fabrication. However, deep and extreme ultraviolet lithographic systems as well as the corresponding photomasks are both relatively expensive. The fabrication methods are based on the low‐speed high‐cost electron‐beam lithography or focused‐ion‐beam etching. Therefore, a maskless high‐speed method is highly recommended for the micro/nano‐structure fabrication. Among all these maskless methods, direct laser writing (DLW) is an important and widely adopted micro‐processing technique. Based on the nonlinear exposure, the feature size can achieve down to tens of nanometers. However, the speed of DLW is a technical bottleneck. To overcome this issue, parallel DLW methods are developed, including the self‐assembly microspheres laser patterning, laser interference lithography, and multifocal array DLW. Herein, the principles, advantages, challenges, and applications of these parallel processing technologies are summarized. Nanoscale resolution for large area arbitrary periodic pattern fabrication is achieved. Meanwhile, these technologies have the unique ability to build 3D structures instead of conventional 2D patterns, which is the direction of future micro/nano‐fabrication. These techniques are widely applied to surface processing and functional device fabrication in the field of sensing, solar cells, and metamaterials.

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“…Thus an amplification of the Raman signal of about 10 6 times has been already reported [2], and even up to 10 11 [3]. Most of the studies were performed for planar structures coated by metallic nanoparticles or for nanostructured metallic films [4], while the application of three-dimensional structures seems much more promising due to a larger (internal) surface area. If this surface is made functional, i.e.…”

Section: Introductionmentioning

confidence: 98%

Optical response of composite plasmonic structures

Mitetelo¹,

Svyakhovskiy²,

Gartman³

et al. 2017

Lith. J. Phys.

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Here we demonstrate the composition of a 3D porous quartz matrix infiltrated by silver nanoparticles as a possible application for surface enhanced Raman scattering (SERS) investigations. Various types of infiltration techniques applied for the incorporation of plasmonic Ag nanoparticles inside the pores are considered. We observe an enhancement of the second harmonic generation intensity, two-photon luminescence and nonlinear absorption in the composite metal-dielectric structures in the spectral vicinity of the localized surface plasmon resonance in silver nanoparticles, which confirms the related amplification of the local field effects in these 3D composite structures.

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Ultraviolet pulsed laser interference lithography and application of periodic structured Ag-nanoparticle films for surface-enhanced Raman spectroscopy

Cited by 23 publications

References 43 publications

Two-Step Photonic Reduction of Controlled Periodic Silver Nanostructures for Surface-Enhanced Raman Spectroscopy

Two-Step Photonic Reduction of Controlled Periodic Silver Nanostructures for Surface-Enhanced Raman Spectroscopy

Parallel Laser Micro/Nano‐Processing for Functional Device Fabrication

Optical response of composite plasmonic structures

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