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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:
; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
973768
Report Number(s):
ANL/HEP/CP-06-73
TRN: US1002033
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Conference
Resource Relation:
Conference: 12th Advanced Accelerator Concepts Workshop; Jul. 10, 2006 - Jul. 15, 2006; Lake Geneva, WI
Country of Publication:
United States
Language:
ENGLISH
Subject:
43 PARTICLE ACCELERATORS; ACCELERATORS; COMPUTERS; DISPERSION RELATIONS; FREQUENCY RANGE; PERIODICITY; PERMEABILITY; PERMITTIVITY; SIMULATION; WAVEGUIDES; WAVELENGTHS

Citation Formats

Gai, W, Power, J G, Antipov, S, Liu, W, Spentzouris, L, High Energy Physics, and IIT,. Left-handed structures for accelerator applications.. United States: N. p., 2006. Web. doi:10.1063/1.2409220.
Gai, W, Power, J G, Antipov, S, Liu, W, Spentzouris, L, High Energy Physics, & IIT,. Left-handed structures for accelerator applications.. United States. https://doi.org/10.1063/1.2409220
Gai, W, Power, J G, Antipov, S, Liu, W, Spentzouris, L, High Energy Physics, and IIT,. Sun . "Left-handed structures for accelerator applications.". United States. https://doi.org/10.1063/1.2409220.
@article{osti_973768,
title = {Left-handed structures for accelerator applications.},
author = {Gai, W and Power, J G and Antipov, S and Liu, W and Spentzouris, L and High Energy Physics and IIT,},
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/973768}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2006},
month = {1}
}

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