2007
DOI: 10.1063/1.2743936
|View full text |Cite
|
Sign up to set email alerts
|

Highly dispersive thermo-optical properties of gold nanoparticles

Abstract: The experimental study of the effect of temperature on the complex optical response of matrix-embedded noble metal nanoparticles has been carried out. A thin silica film containing gold nanoparticles with 7% volume fraction has been elaborated. Its thermo-optical refraction and absorption coefficients have then been extracted from temperature-dependent spectroscopic ellipsometry measurements in the visible range. The results, in agreement with our theoretical approach, exhibit strong dispersion, with amplitude… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
3
1
1

Citation Types

1
18
0

Year Published

2008
2008
2020
2020

Publication Types

Select...
6
2

Relationship

1
7

Authors

Journals

citations
Cited by 32 publications
(19 citation statements)
references
References 17 publications
1
18
0
Order By: Relevance
“…The consequences are surprising at first sight: The effective thermo-optical coefficients of the global medium are amplified by the effect of local field enhancement, and presents spectral variations in both sign and magnitude very different from those observed for the constituents taken separately. Stationary ellipsometry measurements at different temperatures have confirmed these findings [97]. Additionally, we have been able to infer that the thermal expansion of metal nanoparticles is quenched when embedded in a solid matrix.…”
Section: The Case Of Nanocomposite Mediasupporting
confidence: 72%
See 1 more Smart Citation
“…The consequences are surprising at first sight: The effective thermo-optical coefficients of the global medium are amplified by the effect of local field enhancement, and presents spectral variations in both sign and magnitude very different from those observed for the constituents taken separately. Stationary ellipsometry measurements at different temperatures have confirmed these findings [97]. Additionally, we have been able to infer that the thermal expansion of metal nanoparticles is quenched when embedded in a solid matrix.…”
Section: The Case Of Nanocomposite Mediasupporting
confidence: 72%
“…The stationary thermo-optical regime has been recently studied in our group from both theoretical and experimental points of view [96,97]. Let us here synthesize the key principles and issues in order to apply the findings to one specific aspect of the nonlinear optical response of gold nanoparticles.…”
Section: Stationary Regimementioning
confidence: 99%
“…Counterintuitive thermo-optical response of Au/SiO 2 nanocomposites as a result of local field enhancement was reported in Refs. [36,37]. Recently, we reported the temperature dependence of the quantum yield of the PL from silver [38] and copper [39] NPs.…”
Section: Introductionmentioning
confidence: 97%
“…Liquids with suspended nanoparticles display thermal conductivities significantly higher than that of the base fluids. Besides the numerous researches on the linear and nonlinear optical properties of noble metal nanoparticles, the photothermal properties of nanofluids have not deserved the same attention [11][12][13]. In addition to an interest in basic research, the study of the photothermal properties of nanofluids is relevant for technological and medical applications.…”
Section: Introductionmentioning
confidence: 99%