Amin Gul Hanif

Finite-Difference Frequency-Domain Algorithm for Band-Diagram Calculation of 2-D Photonic Crystals Composed of Debye-Type Dispersive Materials

Wave propagation characteristics in metamaterials including photonic crystals have been widely investigated due to their inherent capabilities for developing a novel devices in the fields of optics, microwave, and antenna engineering. This letter propose a novel finite-difference frequency-domain (FDFD) algorithm for calculating band diagrams of photonic crystals composed of Debye-type dispersive materials. It will be shown that this method is highly accurate and stable in band-diagram calculation by comparison to the finite-difference time-domain (FDTD) method.

FDFD and FDTD analysis of 2-Dimensional lossy photonic crystals

In this paper, a new FDFD algorithm for calculating a band gap diagram of 2-Dimensional (2D) lossy photonic crystals (PC) is developed. It is also shown that the FDTD method can not be successfully applied to the lossy PCs.

New derived finite-difference frequency-domain method used for band structure analysis of 2-D EBG structure composed of Drude-type dispersive media

Electromagnetic wave properties in metamaterials including electromagnetic band gap (EBG) structures have been widely investigated due to their inherent capabilities for developing novel devices in the fields of optics, microwave and antenna engineering. In reality, most of the materials are dispersive or frequency-dependent, on the other hand, it is important to investigate how the performance of EBG structures depends on frequency. We propose herein a new finite-difference frequency-domain (FDFD) algorithm for band structure analysis of two-dimensional EBG materials composed of Drudetype dispersive media. This method is shown to lead to highly accurate and stable band structure calculation.

Finite-difference frequency-domain analysis of wave propagation in 2-D frequency-dependent periodic structures

A new finite-difference frequency-domain (FDFD) algorithm is derived to analyze wave propagation in frequency-dependent periodic structures such as metamaterials. Metamaterials are under intensive investigation in optics, microwave, antenna engineering, and so forth. Accurate modeling of wave propagation in frequency-dependent metamaterials are highly needed because in reality almost all of the materials are frequency-dependent. The results are compared with the finite-difference time-domain (FDTD) method which show that the FDFD has high accuracy and stability.