Impedance-Matching Surface Plasmon Absorber for FDTD Simulations

Autor:	Chii Chang Chen, Sheng Han Tu, Hung I. Huang, Chih Ming Wang, Chien Chang Chao, Jenq Yang Chang
Rok vydání:	2009
Předmět:	Surface (mathematics) Materials science Wave propagation business.industry Surface plasmon Biophysics Finite-difference time-domain method Impedance matching Edge (geometry) Biochemistry Perfectly matched layer Optics business Layer (electronics) Biotechnology
Zdroj:	Plasmonics. 5:51-55
ISSN:	1557-1963 1557-1955
DOI:	10.1007/s11468-009-9114-2
Popis:	The perfectly matched layer (PML) can be used as an excellent boundary in the finite-difference time-domain method; however, it fails to absorb surface plasmon (SP) wave directly. In order to absorb an incident SP wave at the edge of a metal surface, an impedance-matching layer (IML) is implemented between the metal surface and the PML. A very low SP wave reflectance of −26.54 dB is achieved through the use of an IML with a length of only λ/3. The IML significantly reduces SP wave reflectance and creates a quasi-infinite regime for the purpose of SP wave propagation on the metal’s surface while the acquired simulation area undergoes a slight increase.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::750281e137cb7c277ad0a4612d1cdd7a https://doi.org/10.1007/s11468-009-9114-2 Zobrazit plný text záznamu Full text from SpringerLink