Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control

Katie E. Chong; Isabelle Staude; Anthony James; Jason Dominguez; Sheng Liu; Salvatore Campione; Ganapathi S. Subramania; Ting S. Luk; Manuel Decker; Dragomir N. Neshev; Igal Brener; Yuri S. Kivshar

doi:10.1021/acs.nanolett.5b01752

Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control

Katie E. Chong, Isabelle Staude, Anthony James, Jason Dominguez, Sheng Liu, Salvatore Campione, Ganapathi S. Subramania, Ting S. Luk, Manuel Decker, Dragomir N. Neshev, Igal Brener, Yuri S. Kivshar

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

370 Scopus citations

Abstract

We experimentally demonstrate a functional silicon metadevice at telecom wavelengths that can efficiently control the wavefront of optical beams by imprinting a spatially varying transmittance phase independent of the polarization of the incident beam. Near-unity transmittance efficiency and close to 0-2 phase coverage are enabled by utilizing the localized electric and magnetic Mie-type resonances of low-loss silicon nanoparticles tailored to behave as electromagnetically dual-symmetric scatterers. We apply this concept to realize a metadevice that converts a Gaussian beam into a vortex beam. The required spatial distribution of transmittance phases is achieved by a variation of the lattice spacing as a single geometric control parameter.

Original language	English
Pages (from-to)	5369-5374
Number of pages	6
Journal	Nano Letters
Volume	15
Issue number	8
DOIs	https://doi.org/10.1021/acs.nanolett.5b01752
State	Published - Aug 12 2015
Externally published	Yes

Keywords

Huygens surface
Metasurface
beamshaping
electromagnetic duality
metadevice
vortex beam

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10.1021/acs.nanolett.5b01752

Cite this

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title = "Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control",

abstract = "We experimentally demonstrate a functional silicon metadevice at telecom wavelengths that can efficiently control the wavefront of optical beams by imprinting a spatially varying transmittance phase independent of the polarization of the incident beam. Near-unity transmittance efficiency and close to 0-2 phase coverage are enabled by utilizing the localized electric and magnetic Mie-type resonances of low-loss silicon nanoparticles tailored to behave as electromagnetically dual-symmetric scatterers. We apply this concept to realize a metadevice that converts a Gaussian beam into a vortex beam. The required spatial distribution of transmittance phases is achieved by a variation of the lattice spacing as a single geometric control parameter.",

keywords = "Huygens surface, Metasurface, beamshaping, electromagnetic duality, metadevice, vortex beam",

author = "Chong, \{Katie E.\} and Isabelle Staude and Anthony James and Jason Dominguez and Sheng Liu and Salvatore Campione and Subramania, \{Ganapathi S.\} and Luk, \{Ting S.\} and Manuel Decker and Neshev, \{Dragomir N.\} and Igal Brener and Kivshar, \{Yuri S.\}",

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year = "2015",

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day = "12",

doi = "10.1021/acs.nanolett.5b01752",

language = "English",

volume = "15",

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journal = "Nano Letters",

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TY - JOUR

T1 - Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control

AU - Chong, Katie E.

AU - Staude, Isabelle

AU - James, Anthony

AU - Dominguez, Jason

AU - Liu, Sheng

AU - Campione, Salvatore

AU - Subramania, Ganapathi S.

AU - Luk, Ting S.

AU - Decker, Manuel

AU - Neshev, Dragomir N.

AU - Brener, Igal

AU - Kivshar, Yuri S.

PY - 2015/8/12

Y1 - 2015/8/12

N2 - We experimentally demonstrate a functional silicon metadevice at telecom wavelengths that can efficiently control the wavefront of optical beams by imprinting a spatially varying transmittance phase independent of the polarization of the incident beam. Near-unity transmittance efficiency and close to 0-2 phase coverage are enabled by utilizing the localized electric and magnetic Mie-type resonances of low-loss silicon nanoparticles tailored to behave as electromagnetically dual-symmetric scatterers. We apply this concept to realize a metadevice that converts a Gaussian beam into a vortex beam. The required spatial distribution of transmittance phases is achieved by a variation of the lattice spacing as a single geometric control parameter.

AB - We experimentally demonstrate a functional silicon metadevice at telecom wavelengths that can efficiently control the wavefront of optical beams by imprinting a spatially varying transmittance phase independent of the polarization of the incident beam. Near-unity transmittance efficiency and close to 0-2 phase coverage are enabled by utilizing the localized electric and magnetic Mie-type resonances of low-loss silicon nanoparticles tailored to behave as electromagnetically dual-symmetric scatterers. We apply this concept to realize a metadevice that converts a Gaussian beam into a vortex beam. The required spatial distribution of transmittance phases is achieved by a variation of the lattice spacing as a single geometric control parameter.

KW - Huygens surface

KW - Metasurface

KW - beamshaping

KW - electromagnetic duality

KW - metadevice

KW - vortex beam

UR - https://www.scopus.com/pages/publications/84939144686

U2 - 10.1021/acs.nanolett.5b01752

DO - 10.1021/acs.nanolett.5b01752

M3 - Article

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AN - SCOPUS:84939144686

SN - 1530-6984

VL - 15

SP - 5369

EP - 5374

JO - Nano Letters

JF - Nano Letters

IS - 8

ER -

Polarization-Independent Silicon Metadevices for Efficient Optical Wavefront Control

Abstract

Keywords

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