Simulating the response of nanostructures under a focused beam

Paul Chevalier; Patrick Bouchon; Riad Haïdar; Fabrice Pardo

doi:10.1117/12.2052603

Simulating the response of nanostructures under a focused beam

Paul Chevalier
, Patrick Bouchon
, Riad Haïdar
, Fabrice Pardo

École Polytechnique

Centre de Nanosciences et de Nanotechnologies
ONERA Office National d'Etudes et Recherches Aerospatiales

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

Focusing the light onto nanostructures thanks to spherical lenses is a first step to enhance the field, and is widely used in applications needing strong light matter interactions. Nonetheless, the electromagnetic response of such nanostructures, which have subwavelength patterns, to a focused beam can not be described by classical optics. Here, we describe a formalism to efficiently compute the behavior of nanostructures under a focused beam based on an apodized decomposition on plane waves. Besides, each computation of a plane wave is done on only one period thanks to a conical B-spline modal method. Various examples illustrating the focusing are detailed, and in particular the possibility to move the focal spot and to tilt the focus beam.

Original language	English
Title of host publication	Optical Modelling and Design III
Publisher	SPIE
ISBN (Print)	9781628410792
DOIs	https://doi.org/10.1117/12.2052603
Publication status	Published - 1 Jan 2014
Event	Unknown conference - Brussels, Belgium Duration: 15 Apr 2014 → 17 Apr 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9131
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Conference

Conference	Unknown conference
Country/Territory	Belgium
City	Brussels
Period	15/04/14 → 17/04/14

Keywords

Nanophotonics
focused beam
modal method
numerical simulation

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10.1117/12.2052603

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title = "Simulating the response of nanostructures under a focused beam",

abstract = "Focusing the light onto nanostructures thanks to spherical lenses is a first step to enhance the field, and is widely used in applications needing strong light matter interactions. Nonetheless, the electromagnetic response of such nanostructures, which have subwavelength patterns, to a focused beam can not be described by classical optics. Here, we describe a formalism to efficiently compute the behavior of nanostructures under a focused beam based on an apodized decomposition on plane waves. Besides, each computation of a plane wave is done on only one period thanks to a conical B-spline modal method. Various examples illustrating the focusing are detailed, and in particular the possibility to move the focal spot and to tilt the focus beam.",

keywords = "Nanophotonics, focused beam, modal method, numerical simulation",

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series = "Proceedings of SPIE - The International Society for Optical Engineering",

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TY - GEN

T1 - Simulating the response of nanostructures under a focused beam

AU - Chevalier, Paul

AU - Bouchon, Patrick

AU - Haïdar, Riad

AU - Pardo, Fabrice

PY - 2014/1/1

Y1 - 2014/1/1

N2 - Focusing the light onto nanostructures thanks to spherical lenses is a first step to enhance the field, and is widely used in applications needing strong light matter interactions. Nonetheless, the electromagnetic response of such nanostructures, which have subwavelength patterns, to a focused beam can not be described by classical optics. Here, we describe a formalism to efficiently compute the behavior of nanostructures under a focused beam based on an apodized decomposition on plane waves. Besides, each computation of a plane wave is done on only one period thanks to a conical B-spline modal method. Various examples illustrating the focusing are detailed, and in particular the possibility to move the focal spot and to tilt the focus beam.

AB - Focusing the light onto nanostructures thanks to spherical lenses is a first step to enhance the field, and is widely used in applications needing strong light matter interactions. Nonetheless, the electromagnetic response of such nanostructures, which have subwavelength patterns, to a focused beam can not be described by classical optics. Here, we describe a formalism to efficiently compute the behavior of nanostructures under a focused beam based on an apodized decomposition on plane waves. Besides, each computation of a plane wave is done on only one period thanks to a conical B-spline modal method. Various examples illustrating the focusing are detailed, and in particular the possibility to move the focal spot and to tilt the focus beam.

KW - Nanophotonics

KW - focused beam

KW - modal method

KW - numerical simulation

U2 - 10.1117/12.2052603

DO - 10.1117/12.2052603

M3 - Conference contribution

AN - SCOPUS:84902289769

SN - 9781628410792

T3 - Proceedings of SPIE - The International Society for Optical Engineering

BT - Optical Modelling and Design III

PB - SPIE

T2 - Unknown conference

Y2 - 15 April 2014 through 17 April 2014

ER -

Simulating the response of nanostructures under a focused beam

Abstract

Publication series

Conference

Keywords

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