Study of UV laser interaction with gold nanoparticles embedded in silica

Bonneau, Florian; Combis, P.; Rullier, Jean-Luc; Vierne, J.; Pellin, Michael J.; Savina, M. R.; Broyer, M.; Cottancin, E.; Tuaillon, J.; Pellarin, M.; Gallais, Laurent; Natoli, Jean-Yves; Perra, Michela; Bercegol, Herve; Lamaignère, Laurent; Loiseau, Marc; Donohue, J.T.

doi:10.1007/s00340-002-1049-7

Cited by 50 publications

(28 citation statements)

References 3 publications

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“…1(b)] with subsequent drying or by means of laser vaporization in vacuum. 4 The particle coverage is adjusted to obtain well-isolated absorbing defects to avoid collective damage effects. Depending on particle size, areal density may vary from 0.3 to 10 particles per m 2 .…”

Section: Model Thin-film Design and Experimental Conditionsmentioning

confidence: 99%

Using gold nanoparticles as artificial defects in thin films: What have we learned about laser-induced damage driven by localized absorbers?

Papernov

Schmid

2006

SPIE Proceedings

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There is general agreement that localized absorbing defects are a major factor affecting thin-film performance, and laserinduced damage in films designed for UV, nanosecond-scale, pulsed-laser applications is driven by nanoscale absorbers. Low number densities and size (few nanometer), however, prevent any characterization of these defects and, consequently, deterministic film improvement. This situation also hampers further development of localized defectdriven damage theory, since initial conditions for modeling remain uncertain. Recently, a new approach for studying laser interaction with thin-film nanoscale defects was implemented in which well-characterized, isolated artificial absorbing defects (gold nanoparticles) were introduced inside the thin film. This work is a review in which we discuss main findings from experiments with gold nanoparticles, such as delocalization of absorption during the laser pulse, importance of the defect boundary conditions (contact with the matrix), and competition of pure thermal and stressdriven mechanisms of damage-crater formation. These experimental results will be compared with theoretical results of damage-crater formation in such model thin films using both phenomenological modeling and detailed calculations of the kinetics of the damage process. An outlook on future thin-film-damage studies using model systems with artificial defects is also presented.

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Section: Model Thin-film Design and Experimental Conditionsmentioning

confidence: 99%

Using gold nanoparticles as artificial defects in thin films: What have we learned about laser-induced damage driven by localized absorbers?

Papernov

Schmid

2006

SPIE Proceedings

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“…Using gold nanoparticles embedded in SiO 2 films has already proved useful for understanding the absorption process delocalization, 3 competition between the thermal and stress-driven mechanisms of damage, 4 and improving modeling codes. [5][6][7] In this work, we extend this approach to hafnia films with the goal of extracting new information about intrinsic hafnia film absorbers through the comparison of damage thresholds and damage morphology for doped and undoped films.…”

Section: Introductionmentioning

confidence: 99%

Damage behavior of HfO 2 monolayer film containing gold nanoparticles as artificial absorbing defects

et al. 2005

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Hafnia is one of the most utilized high-index materials in thin-film multilayer coatings for high-power lasers. It is well established that in the 2 2HfO SiO multilayers for 351 nm, nanosecond-pulse applications the damage is driven by the nanoscale absorbers localized in the hafnia layers. In this work, damage-crater formation thresholds and morphology are investigated for the undoped HfO 2 monolayer films and films containing isolated gold nanoparticles of 2-and 5-nm average diameter. Atomic force microscopy is used for characterization of the damage craters produced by 351-nm, 0.5-ns laser pulses. This comparative study of crater-geometry variation with laser fluence for doped and undoped films allowed the estimation of properties of the intrinsic absorbing defects in the hafnia films.

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“…Upon performing in situ laser damage tests together with a time-of-flight mass spectrometer, it was observed that some gold atoms made their way through a thin silica layer of 60 nm and escaped from the film, even when no significant surface damage occurred. 12 More recently an x-ray photoelectron spectroscopy study has shown that the gold atoms migrate towards the surface upon the laser irradiation. 13 Furthermore, the optical absorption of the irradiated silica was measured by photothermal deflection microscopy.…”

Section: Introductionmentioning

confidence: 99%

X-ray spectroscopy study of electronic structure of laser-irradiated Au nanoparticles in a silica film

Jonnard

Bercegol

Lamaignère

et al. 2005

Journal of Applied Physics

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The electronic structure of gold nanoparticles embedded in a silica film is studied, both before and after irradiation at 355 nm by a laser. The Au 5d occupied valence states are observed by x-ray emission spectroscopy. They show that before irradiation the gold atoms are in metallic states within the nanoparticles. After irradiation with a fluence of 0.5 J/cm2, it is found that gold valence states are close to those of a metal-poor gold silicide; thanks to a comparison of the experimental Au 5d states with the calculated ones for gold silicides using the density-functional theory. The formation of such a compound is driven by the diffusion of the gold atoms into the silica film upon the laser irradiation. At higher fluence, 1 J/cm2, we find a higher percentage of metallic gold that could be attributed to annealing in the silica matrix

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Study of UV laser interaction with gold nanoparticles embedded in silica

Cited by 50 publications

References 3 publications

Using gold nanoparticles as artificial defects in thin films: What have we learned about laser-induced damage driven by localized absorbers?

Using gold nanoparticles as artificial defects in thin films: What have we learned about laser-induced damage driven by localized absorbers?

Damage behavior of HfO 2 monolayer film containing gold nanoparticles as artificial absorbing defects

X-ray spectroscopy study of electronic structure of laser-irradiated Au nanoparticles in a silica film

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