1D Bessel-like beam generation by highly directive transmission through a sub-wavelength slit embedded in periodic metallic grooves

Sehun Kang; Kyunghwan Oh

doi:10.1016/j.optcom.2011.08.001

1D Bessel-like beam generation by highly directive transmission through a sub-wavelength slit embedded in periodic metallic grooves

Sehun Kang, Kyunghwan Oh

Department of Physics

Research output: Contribution to journal › Comment/debate › peer-review

6 Citations (Scopus)

Abstract

A new method to generate a quasi-one dimensional (1D) Bessel-like beam whose non-diffracting length extends to macroscopic scale is proposed by utilizing highly directive transmission through a sub-wavelength single slit embedded in periodic metallic grooves. We employed finite-difference time-domain methods for full-vectorial diffraction and spectral analysis. In optimal conditions, unique quasi-1D Bessel-like beams were generated in transmission for the incident p-polarized plane wave such that highly asymmetric far-field distribution was achieved; Bessel-like beam along the slit axis and a flat-top super-Gaussian beam along the other perpendicular axis. Detailed parametric studies for the proposed structure are reported in terms of the operating spectral range and a general window of optimal conditions.

Original language	English
Pages (from-to)	5388-5393
Number of pages	6
Journal	Optics Communications
Volume	284
Issue number	22
DOIs	https://doi.org/10.1016/j.optcom.2011.08.001
Publication status	Published - 2011 Oct 15

Bibliographical note

Funding Information:
This work was supported in part by the Brain Korea 21 Project , in part by the NRF grant funded by the MEST (Nos. 2010–0018442 , 2009–00479 EC-FP7/2007-2013 219299 GOSPEL , R15-2004-024-00000-0 , F01-2009-000-10200-0 , and 2009–00541 ), in part by the ITEP (Nos. 2009-8-0809 and 2010-8-1415 ), and in part by the ADD (Nos. 2010-8-1806 ).

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Physical and Theoretical Chemistry
Electrical and Electronic Engineering

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10.1016/j.optcom.2011.08.001

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title = "1D Bessel-like beam generation by highly directive transmission through a sub-wavelength slit embedded in periodic metallic grooves",

abstract = "A new method to generate a quasi-one dimensional (1D) Bessel-like beam whose non-diffracting length extends to macroscopic scale is proposed by utilizing highly directive transmission through a sub-wavelength single slit embedded in periodic metallic grooves. We employed finite-difference time-domain methods for full-vectorial diffraction and spectral analysis. In optimal conditions, unique quasi-1D Bessel-like beams were generated in transmission for the incident p-polarized plane wave such that highly asymmetric far-field distribution was achieved; Bessel-like beam along the slit axis and a flat-top super-Gaussian beam along the other perpendicular axis. Detailed parametric studies for the proposed structure are reported in terms of the operating spectral range and a general window of optimal conditions.",

author = "Sehun Kang and Kyunghwan Oh",

note = "Funding Information: This work was supported in part by the Brain Korea 21 Project , in part by the NRF grant funded by the MEST (Nos. 2010–0018442 , 2009–00479 EC-FP7/2007-2013 219299 GOSPEL , R15-2004-024-00000-0 , F01-2009-000-10200-0 , and 2009–00541 ), in part by the ITEP (Nos. 2009-8-0809 and 2010-8-1415 ), and in part by the ADD (Nos. 2010-8-1806 ).",

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doi = "10.1016/j.optcom.2011.08.001",

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AU - Kang, Sehun

AU - Oh, Kyunghwan

N1 - Funding Information: This work was supported in part by the Brain Korea 21 Project , in part by the NRF grant funded by the MEST (Nos. 2010–0018442 , 2009–00479 EC-FP7/2007-2013 219299 GOSPEL , R15-2004-024-00000-0 , F01-2009-000-10200-0 , and 2009–00541 ), in part by the ITEP (Nos. 2009-8-0809 and 2010-8-1415 ), and in part by the ADD (Nos. 2010-8-1806 ).

PY - 2011/10/15

Y1 - 2011/10/15

N2 - A new method to generate a quasi-one dimensional (1D) Bessel-like beam whose non-diffracting length extends to macroscopic scale is proposed by utilizing highly directive transmission through a sub-wavelength single slit embedded in periodic metallic grooves. We employed finite-difference time-domain methods for full-vectorial diffraction and spectral analysis. In optimal conditions, unique quasi-1D Bessel-like beams were generated in transmission for the incident p-polarized plane wave such that highly asymmetric far-field distribution was achieved; Bessel-like beam along the slit axis and a flat-top super-Gaussian beam along the other perpendicular axis. Detailed parametric studies for the proposed structure are reported in terms of the operating spectral range and a general window of optimal conditions.

AB - A new method to generate a quasi-one dimensional (1D) Bessel-like beam whose non-diffracting length extends to macroscopic scale is proposed by utilizing highly directive transmission through a sub-wavelength single slit embedded in periodic metallic grooves. We employed finite-difference time-domain methods for full-vectorial diffraction and spectral analysis. In optimal conditions, unique quasi-1D Bessel-like beams were generated in transmission for the incident p-polarized plane wave such that highly asymmetric far-field distribution was achieved; Bessel-like beam along the slit axis and a flat-top super-Gaussian beam along the other perpendicular axis. Detailed parametric studies for the proposed structure are reported in terms of the operating spectral range and a general window of optimal conditions.

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U2 - 10.1016/j.optcom.2011.08.001

DO - 10.1016/j.optcom.2011.08.001

M3 - Comment/debate

AN - SCOPUS:80052832746

SN - 0030-4018

VL - 284

SP - 5388

EP - 5393

JO - Optics Communications

JF - Optics Communications

IS - 22

ER -

1D Bessel-like beam generation by highly directive transmission through a sub-wavelength slit embedded in periodic metallic grooves

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