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Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings

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Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings. / Caglayan, H.; Bulu, I.; Ozbay, E.

In: Journal of Physics D: Applied Physics, Vol. 42, No. 4, 045105, 2009.

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Caglayan, H. ; Bulu, I. ; Ozbay, E. / Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings. In: Journal of Physics D: Applied Physics. 2009 ; Vol. 42, No. 4.

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@article{0b01058f28be4fb2ad4f765d40094f58,
title = "Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings",
abstract = "It is possible to obtain enhanced and directional beams using subwavelength metallic structures. However, the enhanced beams throughout such structures are only directed towards the propagation direction. In this study, we design the output surface gratings asymmetrically in order to steer the beaming angle. We use a metallic structure with a subwavelength slit (λ/10) and grating periods of 14 mm and 22 mm on different sides of the output surface. We demonstrate off-axis directional beaming in the microwave regime with an FWHM of 10° with a beaming angle of 15°. The beaming angle can be changed by arranging the grating periods of the output surface of the metallic structure.",
author = "H. Caglayan and I. Bulu and E. Ozbay",
note = "EXT={"}Caglayan, H.{"}",
year = "2009",
doi = "10.1088/0022-3727/42/4/045105",
language = "English",
volume = "42",
journal = "Journal of Physics D: Applied Physics",
issn = "0022-3727",
publisher = "IOP Publishing",
number = "4",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - Observation of off-axis directional beaming via subwavelength asymmetric metallic gratings

AU - Caglayan, H.

AU - Bulu, I.

AU - Ozbay, E.

N1 - EXT="Caglayan, H."

PY - 2009

Y1 - 2009

N2 - It is possible to obtain enhanced and directional beams using subwavelength metallic structures. However, the enhanced beams throughout such structures are only directed towards the propagation direction. In this study, we design the output surface gratings asymmetrically in order to steer the beaming angle. We use a metallic structure with a subwavelength slit (λ/10) and grating periods of 14 mm and 22 mm on different sides of the output surface. We demonstrate off-axis directional beaming in the microwave regime with an FWHM of 10° with a beaming angle of 15°. The beaming angle can be changed by arranging the grating periods of the output surface of the metallic structure.

AB - It is possible to obtain enhanced and directional beams using subwavelength metallic structures. However, the enhanced beams throughout such structures are only directed towards the propagation direction. In this study, we design the output surface gratings asymmetrically in order to steer the beaming angle. We use a metallic structure with a subwavelength slit (λ/10) and grating periods of 14 mm and 22 mm on different sides of the output surface. We demonstrate off-axis directional beaming in the microwave regime with an FWHM of 10° with a beaming angle of 15°. The beaming angle can be changed by arranging the grating periods of the output surface of the metallic structure.

UR - http://www.scopus.com/inward/record.url?scp=67650075571&partnerID=8YFLogxK

U2 - 10.1088/0022-3727/42/4/045105

DO - 10.1088/0022-3727/42/4/045105

M3 - Article

VL - 42

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

SN - 0022-3727

IS - 4

M1 - 045105

ER -