Optiwave

Application Gallery

 

 

 

Surface Plasmon and Nano-Metallic Materials

Metallic photonic materials demonstrate unique properties due to the existence of metals on electromagnetic surface waves known as surface plasmons. Surface plasmons are set to become part of the photonics revolution in which the interaction between light and matter is controlled by producing patterned structures that are periodic on the scale of the wavelength of light.

Silicon Nanowire for Photovoltaic Applications

(PVs) are arrays of cells containing a Solar photovoltaic material that converts solar radiation into direct current electricity. Materials presently used for photovoltaics include monocrystalline silicon, polycrystalline silicon, microcrystalline silicon, cadmium telluride, and copper indium selenide/sulfide.

Nano-Lens and Micro-Lens Simulations

When optical lens size is compatible with the working wavelength, the traditional lens analysis tools such as ray-tracing method will lose their accuracy.  The FDTD method can be used to advantage in the nano-lens simulation.  OptiFDTD software also provides tools so that beam focus size, focus distance, and far-field transform can be obtained directly. The following two samples illustrate nano-lens simulations.

Light Scattering from Single Biological Cells

Biological cells can be considered as dielectric objects with a given refractive index distribution. Light scattering simulations provide us with an efficient tool for studying cell morphology as well as the nature of scattering and its sources.

The analysis of this information is the basis for a better understanding and development of new optical methods for non-invasive biomedical diagnostics. Here we demonstrate the potential of Finite-Difference Time-Domain (FDTD) method based software tools for the simulation of light scattering from single cells in situations where other approaches simply do not work or the approximations inherited in them begin to be questionable.

Optical Grating simulations using OptiFDTD

Optical gratings are basically periodic layouts that may contain chirp or apodization. The wave inside the grating may be complex: Scattered field, transmitted field, diffracted field are all exist, which demand more advanced simulation tools for highly accurate results.

Photonic Bandgap Micro-cavity in Optical Waveguide

This example illustrates a high contrast ridge waveguide with PBG air holes drilled in the waveguide. The PBG has a defect in the center which will lead to resonance in the wave propagation.