An analytical investigation of near-field plates

Mohammadreza F. Imani; Anthony Grbic

doi:10.1016/j.metmat.2010.03.002

An analytical investigation of near-field plates

Mohammadreza F. Imani, Anthony Grbic

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

This paper describes an analytical approach to modeling near-field plates, which are non-periodic grating-like structures that can focus electromagnetic waves to subwavelength dimensions. The analysis provides additional insight into the operation and design of such plates that focus cylindrical waves to subwavelength resolutions. Explicit expressions for the current density induced on the plate and its impedance profile are derived. The analytical expressions are validated numerically.

Original language	English (US)
Pages (from-to)	104-111
Number of pages	8
Journal	Metamaterials
Volume	4
Issue number	2-3
DOIs	https://doi.org/10.1016/j.metmat.2010.03.002
State	Published - Aug 2010
Externally published	Yes

Keywords

Diffraction limit
Evanescent waves
Focusing
Metamaterials
Near-field

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biomaterials
Modeling and Simulation
Condensed Matter Physics
Surfaces and Interfaces
Electrical and Electronic Engineering

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10.1016/j.metmat.2010.03.002

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title = "An analytical investigation of near-field plates",

abstract = "This paper describes an analytical approach to modeling near-field plates, which are non-periodic grating-like structures that can focus electromagnetic waves to subwavelength dimensions. The analysis provides additional insight into the operation and design of such plates that focus cylindrical waves to subwavelength resolutions. Explicit expressions for the current density induced on the plate and its impedance profile are derived. The analytical expressions are validated numerically.",

keywords = "Diffraction limit, Evanescent waves, Focusing, Metamaterials, Near-field",

author = "Imani, {Mohammadreza F.} and Anthony Grbic",

note = "Funding Information: The authors would like to acknowledge discussions with T.B.A. Senior. This work was supported by a NSF Faculty Early Career Development Award (ECCS - 0747623), a Presidential Early Career Award for Scientist and Engineers: (FA9550-09-1-0696), and through the Multidisciplinary University Research Initiative Program (FA9550-06-01-0279).",

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AU - Imani, Mohammadreza F.

AU - Grbic, Anthony

N1 - Funding Information: The authors would like to acknowledge discussions with T.B.A. Senior. This work was supported by a NSF Faculty Early Career Development Award (ECCS - 0747623), a Presidential Early Career Award for Scientist and Engineers: (FA9550-09-1-0696), and through the Multidisciplinary University Research Initiative Program (FA9550-06-01-0279).

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N2 - This paper describes an analytical approach to modeling near-field plates, which are non-periodic grating-like structures that can focus electromagnetic waves to subwavelength dimensions. The analysis provides additional insight into the operation and design of such plates that focus cylindrical waves to subwavelength resolutions. Explicit expressions for the current density induced on the plate and its impedance profile are derived. The analytical expressions are validated numerically.

AB - This paper describes an analytical approach to modeling near-field plates, which are non-periodic grating-like structures that can focus electromagnetic waves to subwavelength dimensions. The analysis provides additional insight into the operation and design of such plates that focus cylindrical waves to subwavelength resolutions. Explicit expressions for the current density induced on the plate and its impedance profile are derived. The analytical expressions are validated numerically.

KW - Diffraction limit

KW - Evanescent waves

KW - Focusing

KW - Metamaterials

KW - Near-field

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JO - Metamaterials

JF - Metamaterials

SN - 1873-1988

IS - 2-3

ER -

An analytical investigation of near-field plates

Abstract

Keywords

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