Computing and Library Services - delivering an inspiring information environment

Effects of disorder on the frequency and field of photonic-crystal cavity resonators

Matthews, C.J. and Seviour, Rebecca (2009) Effects of disorder on the frequency and field of photonic-crystal cavity resonators. Applied Physics B, 94 (3). pp. 381-388. ISSN 0946-2171

Metadata only available from this repository.


n recent years the application of 2-Dimensional (2D) metallic Photonic-Crystal (PC) structures to high-power microwave devices, such as particle accelerators and gyrotrons, has gained increased interest. In this paper we focus on the effect disorder has on the resonant frequency and peak electric field in the defect site of a 2D PC structure. For disorders up to a maximum of 15% variation in position and radius, we found that disorder applied to the innermost rods surrounding the defect site dominates in determining the peak field and resonant frequency of the structure. We also show that small disorder (∼1%) can lead to an increase in peak field in certain cases due to structure optimization. We find that increasing levels of disorder lead to a decreasing average peak field for all structures. Whereas the mean resonant frequency remains constant for increasing disorder while the standard deviation increases. We then develop an understanding for this behaviour in terms of frequency detuning and mode confinement.

Item Type: Article
Subjects: Q Science > Q Science (General)
Q Science > QC Physics
Schools: School of Applied Sciences
Related URLs:
Depositing User: Sara Taylor
Date Deposited: 08 Nov 2012 10:33
Last Modified: 28 Aug 2021 11:24


Downloads per month over past year

Repository Staff Only: item control page

View Item View Item

University of Huddersfield, Queensgate, Huddersfield, HD1 3DH Copyright and Disclaimer All rights reserved ©