Open AccessMode and band analysis of finite dielectric photonic crystals
Author(s) -
Hairong Yin,
Yubin Gong,
Yanyu Wei,
Lingna Yue,
Zhigang Lu,
Huarong Gong,
Huang Min-Zhi,
Wenxiang Wang
Publication year - 2008
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.57.3562
Subject(s) - photonic crystal , dielectric , polarization (electrochemistry) , materials science , optics , band gap , mode (computer interface) , optoelectronics , condensed matter physics , physics , chemistry , computer science , operating system
In this article, dielectric photonic crystals (PhC) with finite dimensions and exposed in air is analyzed for its potential value in traveling wave tubes (TWTs). The modes existing in finite dielectric PhC are EH and HE, and also E if the finite PhC is two-dimensiond. The E1 mode is the E polarization in infinite dielectric PhC. Calculation shows that only the existence of gaps of pass-bands is necessary for PhC in TWTs, while the complete photonic crystal band gaps are superfluous.