Organized metamaterials comprised of gold nanoneedles in a lattice generated on silicon (100) wafer substrates by interfering femtosecond laser processing

Nakata, Yoshiki; Momoo, Kazuma; Miyanaga, Noriaki; Hiromoto, Takuya; Tsuchida, Kunio

doi:10.1007/s00339-012-7236-4

Cited by 8 publications

(7 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In our past experiments using Au film, a thinner film and wider period induce the formation of nanocrowns, 22) and nanowhiskers in the opposite case. 11,21) About the thickness, this tendency is same in the case of Ag, as shown in Figs. 3 and 8.…”

Section: Synthesis Of Nanocrown Superlatticesupporting

confidence: 53%

“…The structure is similar to the water crown; therefore, we named the structure "nanocrown". 21) The different unit structures with different film thickness values, as shown in Figs. 3 and 8, suggest that it is one of the key parameters.…”

Section: Synthesis Of Nanocrown Superlatticementioning

confidence: 99%

“…In the past experiment using an Au thin film, the unit structure changed from a nanobump and nanowhisker to a nanocrown by widening the period of interference from 1.7 to 3.9 µm. 21,22) Therefore, the basic structure will switch between the parameters of both period and thickness. Here, the formation of the watercrown by drop impingement on shallow water is simulated successfully.…”

Section: Synthesis Of Nanocrown Superlatticementioning

confidence: 99%

See 2 more Smart Citations

Template free synthesis of free-standing silver nanowhisker and nanocrown superlattice by interfering femtosecond laser irradiation

Nakata

Miyanaga

Momoo

et al. 2014

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

We report the fabrication and control of a nanostructure superlattice of silver using a solid-liquid-solid (SLS) mechanism induced on a silver thin film by interfering femtosecond laser irradiation. An interference pattern induces fluid flows of silver, which is followed by freezing of a free-standing nanowhisker, nanobump, or nanocrown superlattice fixed on a substrate. The smallest curvature radius of the nanowhisker's apex was 4 nm, which is smaller than one-fifth of the silver nanorods fabricated by chemosynthesis. The SLS process is a superior alternative to sequential bottomup processes involving bottom-up synthesis of nanorods, purification, alignment or self-assembling, stabilization, and preservation.

show abstract

Section: Synthesis Of Nanocrown Superlatticesupporting

confidence: 53%

Section: Synthesis Of Nanocrown Superlatticementioning

confidence: 99%

Section: Synthesis Of Nanocrown Superlatticementioning

confidence: 99%

See 1 more Smart Citation

Template free synthesis of free-standing silver nanowhisker and nanocrown superlattice by interfering femtosecond laser irradiation

Nakata

Miyanaga

Momoo

et al. 2014

Jpn. J. Appl. Phys.

Self Cite

View full text Add to dashboard Cite

show abstract

“…For moderate period sizes in the range of a few µm to tens of µm, mostly nanosecond pulsed lasers have been applied [ 9 , 10 , 11 , 12 ]. If shorter periods in the µm or sub-µm range are desired, especially in case of metals and semiconductors, ultrashort pulses of picosecond or femtosecond duration are used [ 13 , 14 , 15 ]. The latter have the advantage that thermal diffusion of the absorbed energy and thus the extent of the heat affected zone can be minimized enabling precise patterning [ 16 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Formation of Periodic Nanoridge Patterns by Ultrashort Single Pulse UV Laser Irradiation of Gold

et al. 2020

View full text Add to dashboard Cite

A direct comparison of simulation and experimental results of UV laser-induced surface nanostructuring of gold is presented. Theoretical simulations and experiments are performed on an identical spatial scale. The experimental results have been obtained by using a laser wavelength of 248 nm and a pulse length of 1.6 ps. A mask projection setup is applied to generate a spatially periodic intensity profile on a gold surface with a sinusoidal shape and periods of 270 nm, 350 nm, and 500 nm. The formation of structures at the surface upon single pulse irradiation is analyzed by scanning and transmission electron microscopy (SEM and TEM). For the simulations, a hybrid atomistic-continuum model capable of capturing the essential mechanisms responsible for the nanostructuring process is used to model the interaction of the laser pulse with the gold target and the subsequent time evolution of the system. The formation of narrow ridges composed of two colliding side walls is found in the simulation as well as in the experiment and the structures generated as a result of the material processing are categorized depending on the range of applied fluencies and periodicities.

show abstract

“…The self-organization of structures represents an important characteristic resulting from the LNS process and is observed in numerous works [ 29 – 30 ]. The degree of order is described by the distribution of the particle size, shape and inter-particle distance, which can be controlled by the process conditions discussed in our previous works [ 16 , 31 ].…”

Section: Resultsmentioning

confidence: 99%

Properties of plasmonic arrays produced by pulsed-laser nanostructuring of thin Au films

Grochowska¹,

Siuzdak²,

Atanasov³

et al. 2014

Beilstein J. Nanotechnol.

View full text Add to dashboard Cite

SummaryA brief description of research advances in the area of short-pulse-laser nanostructuring of thin Au films is followed by examples of experimental data and a discussion of our results on the characterization of structural and optical properties of gold nanostructures. These consist of partially spherical or spheroidal nanoparticles (NPs) which have a size distribution (80 ± 42 nm) and self-organization characterized by a short-distance order (length scale ≈140 nm). For the NP shapes produced, an observably broader tuning range (of about 150 nm) of the surface plasmon resonance (SPR) band is obtained by renewal thin film deposition and laser annealing of the NP array. Despite the broadened SPR bands, which indicate damping confirmed by short dephasing times not exceeding 4 fs, the self-organized Au NP structures reveal quite a strong enhancement of the optical signal. This was consistent with the near-field modeling and micro-Raman measurements as well as a test of the electrochemical sensing capability.

show abstract

Organized metamaterials comprised of gold nanoneedles in a lattice generated on silicon (100) wafer substrates by interfering femtosecond laser processing

Cited by 8 publications

References 11 publications

Template free synthesis of free-standing silver nanowhisker and nanocrown superlattice by interfering femtosecond laser irradiation

Template free synthesis of free-standing silver nanowhisker and nanocrown superlattice by interfering femtosecond laser irradiation

Formation of Periodic Nanoridge Patterns by Ultrashort Single Pulse UV Laser Irradiation of Gold

Properties of plasmonic arrays produced by pulsed-laser nanostructuring of thin Au films

Contact Info

Product

Resources

About