Surface-Plasmon Resonances in Single Metallic Nanoparticles

Klar, Thomas A.; Perner, M.; Große, S.; Plessen, G. von; Spirkl, W.; Feldmann, Jochen

doi:10.1103/physrevlett.80.4249

Cited by 759 publications

(588 citation statements)

References 16 publications

Supporting

Mentioning

574

Contrasting

Unclassified

Order By: Relevance

“…21, 1999 4215 nanoparticles in a sol-gel TiO 2 matrix. 34 The ensemble line width for this sample was 300 meV. The assumption above that the plasmon band for our samples is homogeneously broadened should then be incorrect.…”

Section: Discussionmentioning

confidence: 99%

Size and Temperature Dependence of the Plasmon Absorption of Colloidal Gold Nanoparticles

1999

View full text Add to dashboard Cite

The size and temperature dependence of the plasmon absorption is studied for 9, 15, 22, 48, and 99 nm gold nanoparticles in aqueous solution. The plasmon bandwidth is found to follow the predicted behavior as it increases with decreasing size in the intrinsic size region (mean diameter smaller than 25 nm), and also increases with increasing size in the extrinsic size region (mean diameter larger than 25 nm). Because of this pronounced size effect a homogeneous size distribution and therefore a homogeneous broadening of the plasmon band is concluded for all the prepared gold nanoparticle samples. By applying a simple two-level model the dephasing time of the coherent plasmon oscillation is calculated and found to be less than 5 fs. Furthermore, the temperature dependence of the plasmon absorption is examined. A small temperature effect is observed. This is consistent with the fact that the dominant electronic dephasing mechanism involves electron-electron interactions rather than electron-phonon coupling.

show abstract

Section: Discussionmentioning

confidence: 99%

Size and Temperature Dependence of the Plasmon Absorption of Colloidal Gold Nanoparticles

1999

View full text Add to dashboard Cite

show abstract

“…A large number of theoretical and experimental studies were dedicated to the understanding of PP physics and revealed fascinating properties. [1][2][3][4] For example, PPs in gold particles are linked to broad band photoluminescence 2 and strong local field enhancement, making these nanostructures promising candidates for a variety of different applications. 4 In addition, the high biocompatibility of gold nanoparticles has stimulated their widespread use in the biosciences within the last few years.…”

mentioning

confidence: 99%

Orientational Imaging of Subwavelength Au Particles with Higher Order Laser Modes

et al. 2006

View full text Add to dashboard Cite

We present a new method for the imaging of single metallic nanoparticles that provides information about their shape and orientation. Using confocal microscopy in combination with higher order laser modes, scattering images of individual particles are recorded. Gold nanospheres and nonorods render characteristic patterns reflecting the different particle geometries. In the case of nanorods, the scattering patterns also reveal the orientation of the particles. This novel technique provides a promising tool for the visualization of nonbleaching labels in the biosciences.

show abstract

“…Of particular interest is the optical response of nanoparticles and nanoparticles with specially designed geometry [2][3][4][5]. For example, using a nanoshell geometry on particles, it has been found that the effective Raman scattering can be enhanced by as much as 10 6 [6].…”

Section: Introductionmentioning

confidence: 99%

Second-harmonic generation for a dilute suspension of coated particles

Hui

Stroud

2004

Phys. Rev. B

View full text Add to dashboard Cite

We derive an expression for the effective second-harmonic coefficient of a dilute suspension of coated spherical particles. It is assumed that the coating material, but not the core or the host, has a nonlinear susceptibility for second-harmonic generation (SHG). The resulting compact expression shows the various factors affecting the effective SHG coefficient. The effective SHG per unit volume of nonlinear coating material is found to be greatly enhanced at certain frequencies, corresponding to the surface plasmon resonance of the coated particles. Similar expression is also derived for a dilute suspension of coated discs. For coating materials with third-harmonic (THG) coefficient, results for the effective THG coefficients are given for the cases of coated particles and coated discs.

show abstract

Surface-Plasmon Resonances in Single Metallic Nanoparticles

Cited by 759 publications

References 16 publications

Size and Temperature Dependence of the Plasmon Absorption of Colloidal Gold Nanoparticles

Size and Temperature Dependence of the Plasmon Absorption of Colloidal Gold Nanoparticles

Orientational Imaging of Subwavelength Au Particles with Higher Order Laser Modes

Second-harmonic generation for a dilute suspension of coated particles

Contact Info

Product

Resources

About