Samenvatting
Nonlinear metamaterials are nowadays subject to various scientific research. Unfortunately, they are limited at THz and optical frequencies. These limitations are caused by the high dispersivity and the high losses of the constituent elements of the nonlinear metamaterial.We propose a new design of a split-ring resonator with dimensions of the order of microns. Optical forces will be introduced by illuminating the structure with high frequent electromagnetic waves. The absorption of light at resonance frequency will induce high electical currents within the resonator. This will induce a deformation of the split-ring resonator. The deformation will be too small and an enhancement of the deformation will be proven by illuminating the split-ring resonator by two electromagnetic waves with a slightly different frequency. This difference will be equal to the low frequent mechanical resonance.
The nonlinear behavior of the split-ring resonator will be demonstrated at high frequencies by coupling the elestic and the electromagnetic interaction.
| Datum prijs | 2012 |
|---|---|
| Originele taal | English |
| Begeleider | Jan Danckaert (Promotor) |