A novel UPML FDTD absorbing boundary condition for dispersive media

Autor:	Shi-quan Zhang, Fei Wang, Bing Wei, Debiao Ge
Rok vydání:	2010
Předmět:	Fictitious domain method Frequency domain Dispersion relation Mathematical analysis General Engineering Finite-difference time-domain method General Physics and Astronomy Boundary value problem Time domain Drude model Poincaré–Steklov operator Mathematics
Zdroj:	Waves in Random and Complex Media. 20:511-527
ISSN:	1745-5049 1745-5030
DOI:	10.1080/17455030.2010.496005
Popis:	The dispersion relation and the reflectionless condition are obtained by Maxwell's curl equations in a uniaxial anisotropic medium and the phase-matching principle. On the basis of the shift operator finite difference time domain (SO-FDTD) method and the transform relation from the frequency domain to the time domain (jω replaced by ), an FDTD absorbing boundary condition available for three types of general dispersive medium models, i.e. Debye model, Lorentz model and Drude model, is given. Numerical results show that the presented scheme has good absorbing performance (the relative error is less than 10−3) for three typical dispersive models. This illustrates the generality and the high effectiveness of the presented scheme.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::06799dab90ebe1e55daba496e041f626 https://doi.org/10.1080/17455030.2010.496005 Zobrazit plný text záznamu