Dispersion analysis of SOI waveguide - Ansys Optics
In this section, MODE will be utilized to study the modes of a SOI waveguide and analyze its dispersion properties. The file waveguide_dispersion.lms contains a simple silicon on SiO2 ridge waveguide with a ridge width of 500 nm and a ridge height of 180 nm. The simulation area is defined in the XY plane with perfectly matched boundary conditions.
Dispersion Optimization of Silicon Nitride Waveguides for Efficient ...
2021年5月11日 · In this paper, we propose an effective approach using 3D finite element method to optimize the dispersion characteristics of silicon nitride waveguides for four-wave mixing (FWM) applications. Numerical studies show that a flat and low dispersion profile can be achieved in a silicon nitride waveguide with the optimized dimensions.
si硅的色散曲线（Dispersion curves of Si silicon） - 道客巴巴
2017年9月21日 · Surface phonon dispersion curves 星级 ... 内容提示： si 硅的色散曲线（Dispersion curves of Si silicon） 8.9949206e + 011 1.1665638e + 001 9.5634000e-003 1.1990809e + 012 1.1669054e + 001 9.5648000e-003 1.4989116e + 012 1.1672471e + 001 6.8330000e-003 1.7965661e + 012 1.1675888e + 001 4.9204800e ...
Phonon dispersion curves along the different direction in Si with ...
The electron band structure and phonon energy dispersion of SiNWs-Si0.7Ge0.3 composite are simulated by using the effective mass Schrödinger equation formulated by the Bloch theorem and the ...
Flattened dispersion in silicon slot waveguides - Optica …
We have proposed the use of slot structures to achieve flat and near-zero chromatic dispersion in silicon waveguides. Flattened dispersion of 0 ± 16 ps/(nm∙km) was obtained over a 553-nm wavelength range, with three ZDWs. The dispersion profile was found to be highly tailorable in terms of the average dispersion value and dispersion slope.
Dispersion engineering in silicon nitride (SiXNY ) waveguides is investigated through the optimization of the waveguide transversal dimensions and refractive indices in a multi-cladding arrangement. Ultra-flat dispersion of -84.0 ± 0.5 ps/nm/km between 1700 and 2440 nm and 1.5 ± 3 ps/nm/km between 1670 and 2500 nm is nu-merically demonstrated.
Phonon dispersion curves in Si (a), 3C-SiC (b), and 4H-SiC (c). For ...
We have measured the phonon dispersion relations in 4H-SiC by inelastic x-ray scattering (IXS) using monochromatized synchrotron radiation. The q-space directions Γ-K-M, Γ-M, and Γ-A were mapped...
We study the conversion of the dispersion parameter of the fundamental TE-like mode from negative to positive in silicon nitride waveguide as function of the waveguide width and height. Design curves are provided to aid in the dispersion engineering process, including geometric variation of the waveguide height and the width.
Experimental dispersion curve in the [001] direction in silicon at …
In this paper, phonon Monte Carlo (MC) method is employed to study the effects of the gray medium approximation on ballistic-diffusive heat conduction in silicon films by comparing with...
In this study, the latest published first-principles Chachiyo correlation functional has been implemented to obtain the phonon dispersion relation of silicon. The calculations are based on local-density approximation (LDA) within the plane-wave pseudopotential method.