Nonlinear light scattering from clusters and single particles.

@article{Dadap2009NonlinearLS,
  title={Nonlinear light scattering from clusters and single particles.},
  author={Jerry Dadap and Hilton B. de Aguiar and Sylvie Roke},
  journal={The Journal of chemical physics},
  year={2009},
  volume={130 21},
  pages={
          214710
        }
}
We present sum-frequency-scattering experiments on colloidal dispersions with various concentrations and in different scattering geometries. At small scattering angles, large fluctuations are observed in the intensity of the scattered sum-frequency photons. By considering the angular dependence of the signal, the particle concentration dependence, and the surface vibrational spectra of the particle, we have determined that the fluctuations are caused by scattering from clusters of particles. We… 
View on PubMed
lbp.epfl.ch
36 Citations
Background Citations
2

Figures from this paper

36 Citations

Citation Type

Citation Type

Theory of optical second-harmonic and sum-frequency scattering from arbitrarily shaped particles
We present a theoretical framework for the generation and scattering of second-harmonic and sum-frequency light from the surface of particles of arbitrary shape in the limit of low index of…
Second harmonic light scattering from the surface of colloidal objects: theory and applications.
  • G. Gonella, H. Dai
  • Chemistry, Physics
    Langmuir : the ACS journal of surfaces and colloids
  • 2014
TLDR
This work has shown that second harmonic light scattering from the particle surface can be quantitatively described by theoretical models and used to measure the adsorption kinetics, molecular structure, and reaction rates at the surfaces of a variety of micrometer- to nanometer-sized particles, including biological cells.
Nonlinear light scattering and spectroscopy of particles and droplets in liquids.
TLDR
Recent developments of nonlinear light scattering techniques have resulted in a deeper insight of the underlying light-matter interactions and shed new light on the molecular mechanism of surface kinetics in solution, properties of interfacial water in contact with hydrophilic and hydrophobic particles and droplets, and vesicle structure and transport properties.
Comparison of scattering and reflection SFG: a question of phase-matching.
TLDR
A comparison between sum frequency scattering (SFS) and reflection mode sum frequency generation (R-SFG) is presented and scattering spectra at different scattering angles agree with nonlinear light scattering theory.
Probing nanoscopic droplet interfaces in aqueous solution with vibrational sum-frequency scattering: A study of the effects of path length, droplet density and pulse energy
Vibrational sum frequency scattering in absorptive media: A theoretical case study of nano-objects water
The structures of interfaces of nano- and microscale objects in aqueous solution are important for a wide variety of physical, chemical and biological processes. Vibrational sum frequency scattering…
Obtaining molecular orientation from second harmonic and sum frequency scattering experiments in water: angular distribution and polarization dependence.
TLDR
The modeling shows that there is an optimal angular region, for which the scattering pattern is most sensitive to molecular orientation, and it is shown that for C(2v) and C(3v) point groups, the asymmetric stretch mode displays a higher sensitivity to Molecular orientation than the corresponding symmetric mode.
Nonlinear correlation spectroscopy (NLCS).
TLDR
Experimental NLCS results in fetal calf serum are presented showing the promising selectivity of this technique for measurement in complex biological environments.
Second harmonic generation in plasmonic nanoresonators
We study second harmonic generation from dipole gold nanoantennas by analyzing the different contributions of bulk and surface nonlinear terms. Numerical calculations have been performed applying a…
Coupled 2D Ag nano-resonator chains for enhanced and spatially tailored second harmonic generation.
TLDR
Results of second harmonic generation calculations performed on Silver coupled 2D-nanoresonators show that the angular emission of the second harmonic field contains information about the spatial location of the pump field hot spots at different frequencies.
...
1
2
3
4
...

References

SHOWING 1-10 OF 132 REFERENCES
Theory for nonlinear Mie-scattering from spherical metal clusters
Using classical electrodynamics we determine the angular dependence of the light intensities radiated in second and third harmonic generation by spherical metal clusters. Forward and backward…
Angle-resolved second-harmonic light scattering from colloidal particles.
TLDR
These measurements suggest scattering anisotropy may be used to isolate particle nonlinear optics from other bulk nonlinear optical effects in suspension and introduction of a simple Rayleigh-Gans-Debye model is introduced.
Scattering of second-harmonic light from small spherical particles ordered in a crystalline lattice
Experimental evidence of scattering of second-harmonic light from the surface of spherical particles of optical dimensions is presented. This mechanism for second-harmonic generation is observed in a…
Nonlinear Mie scattering from spherical particles
A theoretical analysis of the second harmonic generation of light from spherical particles is presented that unifies existing theories which are valid in the special cases of small particle size…
Experimental study of optical second-harmonic scattering from spherical nanoparticles
Optical second-harmonic (SH) generation from the surface of spherical particles of radii much smaller than the optical wavelength has been investigated experimentally. Angle- and…
Nonlinear optical scattering: The concept of effective susceptibility
We present a general theoretical method for deriving effective susceptibilities for (non)linear optical scattering processes of arbitrary order using the reciprocity principle. This method allows us…
Oscillating time correlation functions from dynamic light scattering of gold-labeled tracers
Nanoparticles containing small gold clusters as labels have been used to study tracer diffusion in concentrated colloidal dispersions by dynamic light scattering. Our samples consisted of a small…
Two-colour Dynamic Light Scattering
Abstract The design, alignment and operation of improved two-colour dynamic light scattering equipment which effectively suppresses multiple scattering and allows the study of the Brownian dynamics…
Dynamic light scattering from concentrated colloidal dispersions
Double‐Quantum Light Scattering by Molecules
Double‐quantum light scattering by a system of molecules is discussed in this paper. Expressions have been obtained for the scattered light intensity considering both the coherent and incoherent…
...
1
2
3
4
5
...