Subwavelength focusing of micro grating-Fresnel lens

Long Ma; Jie Lin; Yuan Ma; Peng Jin; Jiubin Tan

doi:10.1016/j.optcom.2013.02.041

Subwavelength focusing of micro grating-Fresnel lens

Long Ma
, Jie Lin
, Yuan Ma
, Peng Jin^*
, Jiubin Tan

^*Corresponding author for this work

Harbin Institute of Technology
Dalhousie University

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

1 Scopus citations

Abstract

The focusing performance of micro grating-Fresnel (G-Fresnel) diffractive optical element is investigated, for the first time, by finite-difference time-domain method based on rigorous electromagnetic theory. The focusing of G-Fresnel lens with different incident wavelength, focal length, and period of grating are explored. Numerical result shows that a subwavelength focusing can be achieved by G-Fresnel lens. Meanwhile, for incident beam with wavelength larger than the period of grating, the transmission of light decreases abruptly. The optical performance is governed by scattering effects from micro G-Fresnel lens. Our results provide very useful information in the field of optical imaging with high resolution and optical precision measurement.

Original language	English
Pages (from-to)	242-245
Number of pages	4
Journal	Optics Communications
Volume	298-299
DOIs	https://doi.org/10.1016/j.optcom.2013.02.041
State	Published - 1 Jul 2013

Keywords

Diffractive optical elements
Focusing performance
Grating-Fresnel lens

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10.1016/j.optcom.2013.02.041

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title = "Subwavelength focusing of micro grating-Fresnel lens",

abstract = "The focusing performance of micro grating-Fresnel (G-Fresnel) diffractive optical element is investigated, for the first time, by finite-difference time-domain method based on rigorous electromagnetic theory. The focusing of G-Fresnel lens with different incident wavelength, focal length, and period of grating are explored. Numerical result shows that a subwavelength focusing can be achieved by G-Fresnel lens. Meanwhile, for incident beam with wavelength larger than the period of grating, the transmission of light decreases abruptly. The optical performance is governed by scattering effects from micro G-Fresnel lens. Our results provide very useful information in the field of optical imaging with high resolution and optical precision measurement.",

keywords = "Diffractive optical elements, Focusing performance, Grating-Fresnel lens",

author = "Long Ma and Jie Lin and Yuan Ma and Peng Jin and Jiubin Tan",

year = "2013",

month = jul,

day = "1",

doi = "10.1016/j.optcom.2013.02.041",

language = "英语",

volume = "298-299",

pages = "242--245",

journal = "Optics Communications",

issn = "0030-4018",

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TY - JOUR

T1 - Subwavelength focusing of micro grating-Fresnel lens

AU - Ma, Long

AU - Lin, Jie

AU - Ma, Yuan

AU - Jin, Peng

AU - Tan, Jiubin

PY - 2013/7/1

Y1 - 2013/7/1

N2 - The focusing performance of micro grating-Fresnel (G-Fresnel) diffractive optical element is investigated, for the first time, by finite-difference time-domain method based on rigorous electromagnetic theory. The focusing of G-Fresnel lens with different incident wavelength, focal length, and period of grating are explored. Numerical result shows that a subwavelength focusing can be achieved by G-Fresnel lens. Meanwhile, for incident beam with wavelength larger than the period of grating, the transmission of light decreases abruptly. The optical performance is governed by scattering effects from micro G-Fresnel lens. Our results provide very useful information in the field of optical imaging with high resolution and optical precision measurement.

AB - The focusing performance of micro grating-Fresnel (G-Fresnel) diffractive optical element is investigated, for the first time, by finite-difference time-domain method based on rigorous electromagnetic theory. The focusing of G-Fresnel lens with different incident wavelength, focal length, and period of grating are explored. Numerical result shows that a subwavelength focusing can be achieved by G-Fresnel lens. Meanwhile, for incident beam with wavelength larger than the period of grating, the transmission of light decreases abruptly. The optical performance is governed by scattering effects from micro G-Fresnel lens. Our results provide very useful information in the field of optical imaging with high resolution and optical precision measurement.

KW - Diffractive optical elements

KW - Focusing performance

KW - Grating-Fresnel lens

UR - https://www.scopus.com/pages/publications/84876142982

U2 - 10.1016/j.optcom.2013.02.041

DO - 10.1016/j.optcom.2013.02.041

M3 - 文章

AN - SCOPUS:84876142982

SN - 0030-4018

VL - 298-299

SP - 242

EP - 245

JO - Optics Communications

JF - Optics Communications

ER -

Subwavelength focusing of micro grating-Fresnel lens

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Keywords

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