Angle-Resolved Second-Harmonic Light Scattering from Colloidal Particles

Journal Article · Mon Sep 03 00:00:00 EDT 2001 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.87.103902· OSTI ID:40277519

Yang, N; Angerer, W E; Yodh, A G

We report angle-resolved second-harmonic generation (SHG) measurements from suspensions of centrosymmetric micron-size polystyrene spheres with surface-adsorbed dye (malachite green). The second-harmonic scattering profiles differ qualitatively from linear light scattering profiles of the same particles. We investigated these radiation patterns using several polarization configurations and particle diameters. We introduce a simple Rayleigh-Gans-Debye model to account for the SHG scattering anisotropy. The model compares favorably with our experimental data. Our measurements suggest scattering anisotropy may be used to isolate particle nonlinear optics from other bulk nonlinear optical effects in suspension.

• Sponsoring Organization: (US)
• OSTI ID: 40277519
• Journal Information: Physical Review Letters, Vol. 87, Issue 10; Other Information: DOI: 10.1103/PhysRevLett.87.103902; Othernumber: PRLTAO000087000010103902000001; 035136PRL; PBD: 3 Sep 2001; ISSN 0031-9007
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ANISOTROPY
DYES
HARMONIC GENERATION
LIGHT SCATTERING
NONLINEAR OPTICS
POLARIZATION
POLYSTYRENE
RADIATIONS
SCATTERING