Showing papers by "Habib Tajalli published in 2012"
TL;DR: In this paper, the third order nonlinear refractive index of three anthraquinone dyes, i.e., Solvent Blue 59, Solent Blue 35 and Solvent Green 3 doped in 1294-1b nematic liquid crystal (NLC) was studied using a continuous-wave He-Ne laser at 632.8nm.
18 citations
TL;DR: In this article, the transmission properties of a one-dimensional photonic crystal containing uniaxial indefinite metamaterial were investigated using the transfer matrix method, and it was shown that the photonic bandgaps of the structure strongly depend on the orientation of the optical axis of the indefinite meta-material.
Abstract: The transmission properties of a one-dimensional photonic crystal containing uniaxial indefinite metamaterial are investigated using the transfer matrix method. It is shown that the photonic bandgaps of the structure strongly depend on the orientation of the optical axis of the indefinite metamaterial. The results show that it is possible to obtain the Brewster condition for both TE and TM polarizations. This condition noticeably affects the profiles of the electromagnetic field inside the one-dimensional periodic structure.
12 citations
TL;DR: In this paper, the position of a soliton in a cavity soliton laser can be controlled by injecting incoherent or coherent beams close to the soliton, depending on the type of injection.
Abstract: We show that the position of a soliton in a cavity soliton laser can be controlled by injecting incoherent or coherent beams close to the soliton. The interaction between the CS and the injected beam can be attractive or repulsive depending on the type of injection. The energy necessary to drift the soliton can be very small if the injected beam is frequency matched with the soliton and the laser operates near the drift instability threshold of the soliton. In this way an optical switch at very low energy in a miniaturized device can be realized.
8 citations
TL;DR: In this article, the effect of anisotropy on the photonic band structure and surface polaritons of a one-dimensional photonic crystal made of uniaxially anisotropic epsilon-negative and mu-negative metamaterials is theoretically investigated.
3 citations