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Optical spatial differentiation with suspended subwavelength gratings

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Optical spatial differentiation with suspended subwavelength gratings. / Parthenopoulos, Alexios; Darki, Ali Akbar; Jeppesen, Bjarke Rolighed et al.
I: Optics Express, Bind 29, Nr. 5, 2021, s. 6481-6494.

Publikation: Bidrag til tidsskrift/Konferencebidrag i tidsskrift /Bidrag til avis › Tidsskriftartikel › Forskning › peer review

Harvard

Parthenopoulos, A, Darki, AA, Jeppesen, BR & Dantan, AR 2021, 'Optical spatial differentiation with suspended subwavelength gratings', Optics Express, bind 29, nr. 5, s. 6481-6494. https://doi.org/10.1364/OE.416801

APA

Parthenopoulos, A., Darki, A. A., Jeppesen, B. R., & Dantan, A. R. (2021). Optical spatial differentiation with suspended subwavelength gratings. Optics Express, 29(5), 6481-6494. https://doi.org/10.1364/OE.416801

CBE

Parthenopoulos A, Darki AA, Jeppesen BR, Dantan AR. 2021. Optical spatial differentiation with suspended subwavelength gratings. Optics Express. 29(5):6481-6494. https://doi.org/10.1364/OE.416801

MLA

Parthenopoulos, Alexios et al. "Optical spatial differentiation with suspended subwavelength gratings". Optics Express. 2021, 29(5). 6481-6494. https://doi.org/10.1364/OE.416801

Vancouver

Parthenopoulos A, Darki AA, Jeppesen BR, Dantan AR. Optical spatial differentiation with suspended subwavelength gratings. Optics Express. 2021;29(5):6481-6494. doi: 10.1364/OE.416801

Author

Parthenopoulos, Alexios ; Darki, Ali Akbar ; Jeppesen, Bjarke Rolighed et al. / Optical spatial differentiation with suspended subwavelength gratings. I: Optics Express. 2021 ; Bind 29, Nr. 5. s. 6481-6494.

Bibtex

@article{807a8fe2b867496a8d577cbb32422efa,
title = "Optical spatial differentiation with suspended subwavelength gratings",
abstract = "We investigate first- and second-order spatial differentiation of an optical beam transverse profile using guided-mode resonances in thin, suspended subwavelength gratings. Highly reflective one-dimensional gratings are patterned on freestanding 200 nm-thick silicon nitride membranes using Electron Beam Lithography and plasma etching. The optical transmission of these gratings, designed for illumination with either TM or TE polarized light, are experimentally measured under normal and oblique incidence and found to be in excellent agreement with the predictions of an analytical coupled-mode model as well as Rigorous Coupled Wave Analysis numerical simulations. Intensity profiles consistent with high quality first- and second-order spatial differentiation of a Gaussian beam are observed in transmission at oblique and normal incidence, respectively. Such easy-to-fabricate, ultrathin and loss-free optical components may be attractive for beam shaping and optical information processing and computing.",
author = "Alexios Parthenopoulos and Darki, {Ali Akbar} and Jeppesen, {Bjarke Rolighed} and Dantan, {Aurelien Romain}",
year = "2021",
doi = "10.1364/OE.416801",
language = "English",
volume = "29",
pages = "6481--6494",
journal = "Optics Express",
issn = "1094-4087",
publisher = "The Optical Society",
number = "5",

}

RIS

TY - JOUR

T1 - Optical spatial differentiation with suspended subwavelength gratings

AU - Parthenopoulos, Alexios

AU - Darki, Ali Akbar

AU - Jeppesen, Bjarke Rolighed

AU - Dantan, Aurelien Romain

PY - 2021

Y1 - 2021

N2 - We investigate first- and second-order spatial differentiation of an optical beam transverse profile using guided-mode resonances in thin, suspended subwavelength gratings. Highly reflective one-dimensional gratings are patterned on freestanding 200 nm-thick silicon nitride membranes using Electron Beam Lithography and plasma etching. The optical transmission of these gratings, designed for illumination with either TM or TE polarized light, are experimentally measured under normal and oblique incidence and found to be in excellent agreement with the predictions of an analytical coupled-mode model as well as Rigorous Coupled Wave Analysis numerical simulations. Intensity profiles consistent with high quality first- and second-order spatial differentiation of a Gaussian beam are observed in transmission at oblique and normal incidence, respectively. Such easy-to-fabricate, ultrathin and loss-free optical components may be attractive for beam shaping and optical information processing and computing.

AB - We investigate first- and second-order spatial differentiation of an optical beam transverse profile using guided-mode resonances in thin, suspended subwavelength gratings. Highly reflective one-dimensional gratings are patterned on freestanding 200 nm-thick silicon nitride membranes using Electron Beam Lithography and plasma etching. The optical transmission of these gratings, designed for illumination with either TM or TE polarized light, are experimentally measured under normal and oblique incidence and found to be in excellent agreement with the predictions of an analytical coupled-mode model as well as Rigorous Coupled Wave Analysis numerical simulations. Intensity profiles consistent with high quality first- and second-order spatial differentiation of a Gaussian beam are observed in transmission at oblique and normal incidence, respectively. Such easy-to-fabricate, ultrathin and loss-free optical components may be attractive for beam shaping and optical information processing and computing.

U2 - 10.1364/OE.416801

DO - 10.1364/OE.416801

M3 - Journal article

C2 - 33726168

VL - 29

SP - 6481

EP - 6494

JO - Optics Express

JF - Optics Express

SN - 1094-4087

IS - 5

ER -