Femtosecond laser processing of glassy and polymeric matrices containing metals and semiconductor nanostructures

Almeida, Juliana M. P.; Tribuzi, V.; Fonseca, Ruben D.; Otuka, Adriano J. G.; Ferreira, P. H. D.; Mastelaro, Valmor Roberto; Brajato, P.; Hernandes, Antônio Carlos; Dev, Apurba; Voss, T.; Corrêa, Daniel S.; Mendonça, Cleber Renato

doi:10.1016/j.optmat.2013.08.001

Cited by 31 publications

(11 citation statements)

References 35 publications

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“…Thus, if low repetition rate lasers are applied, annealing is required, configuring a two-step processing. Figure 12 clarifies the effects of high and low repetition rate lasers on the precipitation of copper and silver NPs in borosilicate glass [107,109]. The absorption spectra of pristine samples are represented by solid curve, while dotted and dashed curves display the absorbance after the irradiation using fs-lasers of 5 MHz (800 nm, 50 fs) and 1 kHz (775 nm, 150 fs) of repetition rate, respectively.…”

Section: Glass Matrixmentioning

confidence: 80%

“…Silver nanoparticles were produced and controlled three-dimensionally by direct laser writing in the same way [109]. The influence of low and high repetition rate lasers is shown in Figure 12b and can be explained following the previous example of copper NPs.…”

Section: Glass Matrixmentioning

confidence: 83%

“…Details about sample composition and experimental setup are described in Refs. [107,109]. Copper-doped sample originally presents a wide absorption band from 550-1000 nm due to the presence of Cu 2+ ions, as seen in Figure 12a [107].…”

Section: Glass Matrixmentioning

confidence: 99%

“…It has been discussed that the formation of Ag NPs, along with the waveguide fabrication, helps to improve the refractive index change, since an increase of 4.6% (or ∆n = 0.07) has been reported due to the presence of silver NPs in silicate glasses [113]. Silver nanoparticles were produced and controlled three-dimensionally by direct laser writing in the same way [109]. The influence of low and high repetition rate lasers is shown in Figure 12b and can be explained following the previous example of copper NPs.…”

Section: Glass Matrixmentioning

confidence: 99%

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Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Corrêa

Almeida

et al. 2017

Photonics

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Abstract:The current demand for fabricating optical and photonic devices displaying high performance, using low-cost and time-saving methods, prompts femtosecond (fs)-laser processing as a promising methodology. High and low repetition femtosecond lasers enable surface and/or bulk modification of distinct materials, which can be used for applications ranging from optical waveguides to superhydrophobic surfaces. Herein, some fundamental aspects of fs-laser processing of materials, as well as the basics of their most common experimental apparatuses, are introduced. A survey of results on polymer fs-laser processing, resulting in 3D waveguides, electroluminescent structures and active hybrid-microstructures for luminescence or biological microenvironments is presented. Similarly, results of fs-laser processing on glasses, gold and silicon to produce waveguides containing metallic nanoparticles, analytical chemical sensors and surface with modified features, respectively, are also described. The complexity of fs-laser micromachining involves precise control of material properties, pushing ultrafast laser processing as an advanced technique for micro/nano devices.

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Section: Glass Matrixmentioning

confidence: 80%

Section: Glass Matrixmentioning

confidence: 83%

Section: Glass Matrixmentioning

confidence: 99%

Section: Glass Matrixmentioning

confidence: 99%

See 2 more Smart Citations

Ultrafast Laser Pulses for Structuring Materials at Micro/Nano Scale: From Waveguides to Superhydrophobic Surfaces

Corrêa

Almeida

et al. 2017

Photonics

View full text Add to dashboard Cite

show abstract

“…For example, the first demonstration of tubular waveguides in PMMA was reported by Zoubir et al [15]. Furthermore, organic chromophores or inorganic compounds, such as rare-earth ions [16], can be incorporated into its polymeric matrix to develop devices aiming at specific applications [17].…”

Section: Introductionmentioning

confidence: 99%