Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Atoms (1)
- Bragg fibers (1)
- Current drive (1)
- Eigenvalue system (1)
- Electromagnetic wave polarization (1)
-
- Electromagnetic wave propagation (1)
- Electromagnetic waves (1)
- Electron cyclotron resonance (1)
- Electron emission (1)
- Fast fourier transforms (1)
- Fourier transforms (1)
- Mathematical models (1)
- Micro optics (1)
- Modal properties (1)
- Numerical analysis (1)
- Periodic functions (1)
- Photonic crystal fibers (1)
- Photonic crystals (1)
- Plasma (1)
- Plasma heating (1)
- Plasma simulation (1)
Articles 1 - 3 of 3
Full-Text Articles in Physics
Electron Bernstein Wave-X-O Mode Conversion And Electron Cyclotron Emission In Mast, Josef Preinhaelter, Pavol Pavlo, Vladimir Shevchenko, Martin Valovic, Linda L. Vahala, George Vahala
Electron Bernstein Wave-X-O Mode Conversion And Electron Cyclotron Emission In Mast, Josef Preinhaelter, Pavol Pavlo, Vladimir Shevchenko, Martin Valovic, Linda L. Vahala, George Vahala
Electrical & Computer Engineering Faculty Publications
Electron cyclotron emission (ECE) from overdense plasmas can only occur due to electron Bernstein waves (EBW) mode converting near the upper hybrid region to an electromagnetic wave. Experimental data of ECE observations on MAST are studied and compared with EBW-X-O mode conversion modeling results.
Compact Supercell Method Based On Opposite Parity For Bragg Fibers, Wang Zhi, Ren Guobin, Lou Shuquin, Liang Weijun, Shangping Guo
Compact Supercell Method Based On Opposite Parity For Bragg Fibers, Wang Zhi, Ren Guobin, Lou Shuquin, Liang Weijun, Shangping Guo
Electrical & Computer Engineering Faculty Publications
The supercell- based orthonormal basis method is proposed to investigate the modal properties of the Bragg fibers. A square lattice is constructed by the whole Bragg fiber which is considered a supercell, and the periodical dielectric structure of the square lattice is decomposed using periodic functions (cosine). The modal electric field is expanded as the sum of the orthonormal set of Hermite-Gaussian basis functions based on the opposite parity of the transverse electric field. The propagation characteristics of Bragg fibers can be obtained after recasting the wave equation into an eigenvalue system. This method is implemented with very high efficiency …
Simple Plane Wave Implementation For Photonic Crystal Calculations, Shangping Guo, Sacharia Albin
Simple Plane Wave Implementation For Photonic Crystal Calculations, Shangping Guo, Sacharia Albin
Electrical & Computer Engineering Faculty Publications
A simple implementation of plane wave method is presented for modeling photonic crystals with arbitrary shaped ‘atoms’. The Fourier transform for a single ‘atom’ is first calculated either by analytical Fourier transform or numerical FFT, then the shift property is used to obtain the Fourier transform for any arbitrary supercell consisting of a finite number of ‘atoms’. To ensure accurate results, generally, two iterating processes including the plane wave iteration and grid resolution iteration must converge. Analysis shows that using analytical Fourier transform when available can improve accuracy and avoid the grid resolution iteration. It converges to the accurate results …