Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Generation of midfield concentrated beam arrays using periodic metal annular apertures

Not Accessible

Your library or personal account may give you access

Abstract

Generation of minimally diffracting beam arrays in the midfield region using periodic metal annular apertures is investigated. The relations between the patterns of the diffraction fields and the structural parameters of the periodic metal annular aperture are numerically analyzed. Material dependent transmission characteristics are also studied with finite difference time-domain simulation. The results reveal that the beam concentration efficiency and axial intensity uniformity have a trade-off restriction due to strong inter-aperture interference and surface plasmon mediates the transmission efficiency of the periodic annular apertures. The design criteria of the metal annular aperture to achieve the strong and uniform beam arrays are addressed.

©2012 Optical Society of America

Full Article  |  PDF Article
More Like This
Generation of multiple vortex-cones by direct-phase modulation of annular aperture array

Seong-Woo Cho, Hwi Kim, Joonku Hahn, and Byoungho Lee
Appl. Opt. 51(30) 7295-7302 (2012)

Beaming of electromagnetic waves emitted through a subwavelength annular aperture

Humeyra Caglayan, Irfan Bulu, and Ekmel Ozbay
J. Opt. Soc. Am. B 23(3) 419-422 (2006)

A surface plasmon resonance spectrometer using a super-period metal nanohole array

Haisheng Leong and Junpeng Guo
Opt. Express 20(19) 21318-21323 (2012)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (8)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved