Topology-optimized broadband surface relief transmission grating

Jacob Andkjær; Christian P. Ryder; Peter C. Nielsen; Thomas Rasmussen; Kristian Buchwald; Ole Sigmund

doi:10.1117/12.2036997

Topology-optimized broadband surface relief transmission grating

Jacob Andkjær, Christian P. Ryder, Peter C. Nielsen, Thomas Rasmussen, Kristian Buchwald, Ole Sigmund

Ibsen Photonics A/S

Research output: Contribution to journal › Conference article › Research › peer-review

Abstract

We propose a design methodology for systematic design of surface relief transmission gratings with optimized diffraction efficiency. The methodology is based on a gradient-based topology optimization formulation along with 2D frequency domain finite element simulations for TE and TM polarized plane waves. The goal of the optimization is to find a grating design that maximizes diffraction efficiency for the -1st transmission order when illuminated by unpolarized plane waves. Results indicate that a surface relief transmission grating can be designed with a diffraction efficiency of more than 40% in a broadband range going from the ultraviolet region, through the visible region and into the near-infrared region.

Original language	English
Article number	898006
Journal	Progress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume	8980
Number of pages	10
ISSN	1605-7422
DOIs	https://doi.org/10.1117/12.2036997
Publication status	Published - 2014
Event	Physics and Simulation of Optoelectronic Devices XXII - San Francisco, CA, United States Duration: 3 Feb 2014 → 6 Feb 2014 Conference number: 22

Conference

Conference	Physics and Simulation of Optoelectronic Devices XXII
Number	22
Country/Territory	United States
City	San Francisco, CA
Period	03/02/2014 → 06/02/2014

Keywords

Transmission grating
Topology optimization
Diffraction efficiency
Broadband spectroscopy

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10.1117/12.2036997

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title = "Topology-optimized broadband surface relief transmission grating",

abstract = "We propose a design methodology for systematic design of surface relief transmission gratings with optimized diffraction efficiency. The methodology is based on a gradient-based topology optimization formulation along with 2D frequency domain finite element simulations for TE and TM polarized plane waves. The goal of the optimization is to find a grating design that maximizes diffraction efficiency for the -1st transmission order when illuminated by unpolarized plane waves. Results indicate that a surface relief transmission grating can be designed with a diffraction efficiency of more than 40% in a broadband range going from the ultraviolet region, through the visible region and into the near-infrared region.",

keywords = "Transmission grating, Topology optimization, Diffraction efficiency, Broadband spectroscopy",

author = "Jacob Andkj{\ae}r and Ryder, {Christian P.} and Nielsen, {Peter C.} and Thomas Rasmussen and Kristian Buchwald and Ole Sigmund",

year = "2014",

doi = "10.1117/12.2036997",

language = "English",

volume = "8980",

journal = "Progress in Biomedical Optics and Imaging - Proceedings of SPIE",

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T1 - Topology-optimized broadband surface relief transmission grating

AU - Andkjær, Jacob

AU - Ryder, Christian P.

AU - Nielsen, Peter C.

AU - Rasmussen, Thomas

AU - Buchwald, Kristian

AU - Sigmund, Ole

N1 - Conference code: 22

PY - 2014

Y1 - 2014

N2 - We propose a design methodology for systematic design of surface relief transmission gratings with optimized diffraction efficiency. The methodology is based on a gradient-based topology optimization formulation along with 2D frequency domain finite element simulations for TE and TM polarized plane waves. The goal of the optimization is to find a grating design that maximizes diffraction efficiency for the -1st transmission order when illuminated by unpolarized plane waves. Results indicate that a surface relief transmission grating can be designed with a diffraction efficiency of more than 40% in a broadband range going from the ultraviolet region, through the visible region and into the near-infrared region.

AB - We propose a design methodology for systematic design of surface relief transmission gratings with optimized diffraction efficiency. The methodology is based on a gradient-based topology optimization formulation along with 2D frequency domain finite element simulations for TE and TM polarized plane waves. The goal of the optimization is to find a grating design that maximizes diffraction efficiency for the -1st transmission order when illuminated by unpolarized plane waves. Results indicate that a surface relief transmission grating can be designed with a diffraction efficiency of more than 40% in a broadband range going from the ultraviolet region, through the visible region and into the near-infrared region.

KW - Transmission grating

KW - Topology optimization

KW - Diffraction efficiency

KW - Broadband spectroscopy

U2 - 10.1117/12.2036997

DO - 10.1117/12.2036997

M3 - Conference article

SN - 1605-7422

VL - 8980

JO - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

JF - Progress in Biomedical Optics and Imaging - Proceedings of SPIE

M1 - 898006

T2 - Physics and Simulation of Optoelectronic Devices XXII

Y2 - 3 February 2014 through 6 February 2014

ER -

Topology-optimized broadband surface relief transmission grating

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