Coupled Optical Interface Modes in a Thue–Morse Dielectric Superlattice

Autor:	Shengfeng Cheng, An Hu, G.J. Jin, Ru-Wen Peng
Rok vydání:	2001
Předmět:	Physics Fibonacci number Condensed matter physics Long wavelength limit Lattice (order) Superlattice General Physics and Astronomy Thue–Morse sequence Electron Dielectric Spectral line
Zdroj:	Journal of the Physical Society of Japan. 70:2961-2967
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.70.2961
Popis:	We study the coupled optical interface modes in a Thue–Morse dielectric superlattice. Based on the electrostatic continuum approximation, which is correct in the long wavelength limit, the transfer matrix method is used to derive the analytic expressions for frequency spectra and electrostatic potential distributions. The numerical calculations show that the frequency spectra are singular continuous , and the potential profiles are mostly extended and lattice - like . The common features and pronounced differences with coupled optical interface modes in periodic and Fibonacci dielectric superlattices as well as with electrons and acoustic phonons in Thue–Morse structures are exposed. Furthermore, the possibility of experimental observation is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::172064965329795d07543b8499e9e5a6 https://doi.org/10.1143/jpsj.70.2961 Zobrazit plný text záznamu