Second-harmonic generation with magnetic-field controllabilities
Abstract
The authors theoretically exploit a class of nonlinear optical materials, which are made of single domain ferromagnetic nanoparticles coated by a nonmagnetic nanoshell with an intrinsic second-harmonic generation (SHG) susceptibility in a nonmagnetic host fluid. The SHG of such materials possess magnetic-field controllabilities, i.e., magnetic-field-controllable anisotropy, redshift, and enhancement, which are caused to appear by the shift of a resonant plasmon frequency due to the formation of the chains of the coated nanoparticles.
- Publication:
-
Applied Physics Letters
- Pub Date:
- October 2006
- DOI:
- Bibcode:
- 2006ApPhL..89n1906F
- Keywords:
-
- 42.65.Ky;
- 42.70.-a;
- 75.50.Tt;
- 42.65.An;
- 75.30.Gw;
- 75.60.Ch;
- Frequency conversion;
- harmonic generation including higher-order harmonic generation;
- Optical materials;
- Fine-particle systems;
- nanocrystalline materials;
- Optical susceptibility hyperpolarizability;
- Magnetic anisotropy;
- Domain walls and domain structure