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Title: Left-Handed Structures for Accelerator Applications

Abstract

Metamaterials are artificial periodic structures made of small elements and designed to obtain specific electromagnetic properties. As long as the periodicity and the size of the elements are much smaller than the wavelength of interest, an artificial structure can be described by a permittivity and permeability, just like natural materials. When the permittivity and permeability are simultaneously negative in some frequency range, the metamaterial is called double negative or left-handed and has some unusual properties. Left-handed metamaterials (LHM) have potential applications in active and passive devices at millimeter waves and at much higher frequencies. Waveguides loaded with metamaterials are of interest because the metamaterials can change the dispersion relation of the waveguide significantly. Slow backward waves can be produced in a LHM-loaded waveguide without corrugations. The dispersion relation of a LHM-loaded waveguide has several interesting frequency bands which are described. Left-handed structures can be employed at X-band accelerators to suppress wakefields. In this paper we present theoretical studies and computer modeling of waveguides loaded with 2D anisotropic metamaterials, dispersion relations for LHM-loaded waveguides, and describe current efforts toward designing a left-handed accelerator.

Authors:
; ;  [1]; ;  [1]
  1. Argonne National Laboratory, Argonne IL, 60439 (United States)
Publication Date:
OSTI Identifier:
20898760
Resource Type:
Journal Article
Journal Name:
AIP Conference Proceedings
Additional Journal Information:
Journal Volume: 877; Journal Issue: 1; Conference: 12. advanced accelerator concepts workshop, Lake Geneva, WI (United States), 10-15 Jul 2006; Other Information: DOI: 10.1063/1.2409220; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0094-243X
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; ANISOTROPY; COMPUTERIZED SIMULATION; DISPERSION RELATIONS; PERIODICITY; PERMEABILITY; PERMITTIVITY; WAVEGUIDES; WAVELENGTHS

Citation Formats

Antipov, S, Liu, W, Spentzouris, L, Illinois Institute of Technology, Chicago IL 60616, Gai, W, and Power, J G. Left-Handed Structures for Accelerator Applications. United States: N. p., 2006. Web. doi:10.1063/1.2409220.
Antipov, S, Liu, W, Spentzouris, L, Illinois Institute of Technology, Chicago IL 60616, Gai, W, & Power, J G. Left-Handed Structures for Accelerator Applications. United States. https://doi.org/10.1063/1.2409220
Antipov, S, Liu, W, Spentzouris, L, Illinois Institute of Technology, Chicago IL 60616, Gai, W, and Power, J G. Mon . "Left-Handed Structures for Accelerator Applications". United States. https://doi.org/10.1063/1.2409220.
@article{osti_20898760,
title = {Left-Handed Structures for Accelerator Applications},
author = {Antipov, S and Liu, W and Spentzouris, L and Illinois Institute of Technology, Chicago IL 60616 and Gai, W and Power, J G},
abstractNote = {Metamaterials are artificial periodic structures made of small elements and designed to obtain specific electromagnetic properties. As long as the periodicity and the size of the elements are much smaller than the wavelength of interest, an artificial structure can be described by a permittivity and permeability, just like natural materials. When the permittivity and permeability are simultaneously negative in some frequency range, the metamaterial is called double negative or left-handed and has some unusual properties. Left-handed metamaterials (LHM) have potential applications in active and passive devices at millimeter waves and at much higher frequencies. Waveguides loaded with metamaterials are of interest because the metamaterials can change the dispersion relation of the waveguide significantly. Slow backward waves can be produced in a LHM-loaded waveguide without corrugations. The dispersion relation of a LHM-loaded waveguide has several interesting frequency bands which are described. Left-handed structures can be employed at X-band accelerators to suppress wakefields. In this paper we present theoretical studies and computer modeling of waveguides loaded with 2D anisotropic metamaterials, dispersion relations for LHM-loaded waveguides, and describe current efforts toward designing a left-handed accelerator.},
doi = {10.1063/1.2409220},
url = {https://www.osti.gov/biblio/20898760}, journal = {AIP Conference Proceedings},
issn = {0094-243X},
number = 1,
volume = 877,
place = {United States},
year = {2006},
month = {11}
}