Electrical characteristics of modified truncated cone nanowire for efficient light trapping

International audienc

FDTD analysis of nonlinear bragg grating based devices

In this paper, several nonlinear media with different instantaneous third-order nonlinearity responses are analysed. A Finite-Difference-Time-Domain method (FDTD), developed for nonlinear structures, is used to analyse the nonlinear waveguides and periodic nonlinear structures that exhibit attractive properties that make them suitable for novel devices with wavelength tuneable characteristics

Modelling lossy photonic wires: a mode solver comparison

During the past decade, there has been a tradition of comparing the current state-of-the-art optical mode solvers from time to time [1]. In the framework of the European COST P11 action [2], we performed such a comparison, but this time with an additional complication, namely the modeling of an extremely small loss in the propagation constant due to substrate leakage. We present results from a wide variety of models, ranging from different finite-elements solvers, effective index and perturbation methods, fourier modal methods and film mode matching methods

2D Analysis of Multimode Photonic Crystal Resonant Cavities with the Finite Volume Time Domain Method

In this paper an accurate analysis of two-dimensional (2D) Photonic Crystal (PhC) based multimode resonant cavities is carried out. The analysis is performed with a robust and accurate Finite Volume Time Domain (FVTD) technique. The analysis proves the ability of the FVTD method to extract different resonant modes from a multimode PhC resonant cavity with the use of appropriate source profiles. A detailed explanation on how the source is engineered and used to excite different modes is given. Furthermore, parameters such as resonant frequency and quality factor for each resonant mode are accurately calculated