Deriving a dynamic model based on the coupled-mode and carrier rate equations, the effects of coupling coefficient and corrugation position on all-optical flip-flops (AOFF) we have analyzed in this paper. Also the self phase modulation (SPM) in the distributed coupling coefficient distributed feedback semiconductor optical amplifier (DCCDFB-SOA) has been implemented. Then the effects of SPM on ...

-Transmission coefficient, eigen states and tunneling current density of a potentially symmetric quantum double barrier structure has been numerically computed using transfer matrix technique for qualitative analysis of resonant tunneling probability when realistic band structure of higher band gap material is taken into account. GaAs/AlxGa1-xAs material composition is taken as an example for c...

In this paper, we would like to propose a new microring resonator structure based on 6x6 Generalized Mach Zehnder interferometer (GMZI) using silicon waveguides. It is showed that this new kind of the devices works as three separated microring resonators. This characteristic of the device leads to a variety of tasks important to optical communications, including switching, filtering, add-drop m...

   Here, we report a theoretical detailed study of Vacuum Rabi Splitting (VRS) in the system of Nitride Single Quantum Well (SQW) within a semiconductor microcavity. Distributed Bragg Reflectors (DBRs) containing ZnTe/ZnSe multilayers including GaAs microcavity and  ( SQW at the center of microcavity, has been considered. Upper and lower exciton-polariton branches obtaine...

As standard ASTM E2611 reveals, the normal incidence sound transmission loss measured on a small sample in an acoustic tube is not only property of material but also strongly dependent boundary conditions (generally unknown) and way mounted. This article proposes experimental method to control effects lateral tube. The main objective deduce properties “client element” (material sample) from glo...

Omni-directional reflection (ODR) property of one-dimensional photonic crystal (PC) structures consisting of alternate layers of Germanium (Ge), and calcium fluoride (CaF2). The existence of total Omni-directional reflection band gap in 1D-PC is predicted theoretically. Reflectivity of one dimensional periodic structure for TE and TM-modes at different angles of incidence has been calculated by...

The transfer matrix method (TMM) is a common for the modelling of acoustical systems. Traditionally, this requires each unique layer within system to be defined by and then multiplied together in sequential order system. Whilst resulting can used find effective material properties modelled system, analytical expressions these are often unwieldy use. Here, simplified approach proposed obtain sim...

Realizing the significance of precise detection hemoglobin concentrations towards early diagnosis several diseases, present work addresses design and analysis sensor based on defective 1D photonic crystal (PhC). The alternating layers Si SiO2 are used to proposed PhC with a central defect layer infiltrated concentrations. well-established transfer matrix method (TMM) is manipulated study transm...

Abstract Thin impervious layers, cloths or perforated plates are usually utilized with fibrous absorbing materials in order to avoid small particles, coming from deterioration over time flow abrasive effect, becoming dislodged and polluting the environment. These protective facings be carefully considered analyzed, since they can affect acoustical behavior of “backing” material. This study addr...

This paper presents a comprehensive comparison study on the dynamic performances of three planar 3-DOF parallel manipulators (PPMs): 3-RRR, 3-PRR, and 3-RPR. In this research work, discrete time transfer matrix method (DT-TMM) is employed for developing models manipulators. Numerical simulations using virtual work principle ADAMS 2016 software are performed to verify DT-TMM model PPMs. Numerous...