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Title: Polarization-independent silicon metadevices for efficient optical wavefront control

In this study, 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 0–2π 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.
Authors:
 [1] ;  [1] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [2] ;  [1] ;  [1] ;  [2] ;  [1]
  1. The Australian National Univ., Canberra (Australia)
  2. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Publication Date:
Report Number(s):
SAND-2015-6416J
Journal ID: ISSN 1530-6984; 598977
Grant/Contract Number:
AC04-94AL85000
Type:
Accepted Manuscript
Journal Name:
Nano Letters
Additional Journal Information:
Journal Volume: 15; Journal Issue: 8; Journal ID: ISSN 1530-6984
Publisher:
American Chemical Society
Research Org:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
Sponsoring Org:
USDOE National Nuclear Security Administration (NNSA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; metasurface; metadevice; electromagnetic duality; Huygens’ surface; vortex beam; beamshaping
OSTI Identifier:
1235323

Chong, Katie E., Staude, Isabelle, James, Anthony Randolph, Dominguez, Jason James, Liu, Sheng, Campione, Salvatore, Subramania, Ganapathi Subramanian, Luk, Ting S., Decker, Manuel, Neshev, Dragomir N., Brener, Igal, and Kivshar, Yuri S.. Polarization-independent silicon metadevices for efficient optical wavefront control. United States: N. p., Web. doi:10.1021/acs.nanolett.5b01752.
Chong, Katie E., Staude, Isabelle, James, Anthony Randolph, Dominguez, Jason James, Liu, Sheng, Campione, Salvatore, Subramania, Ganapathi Subramanian, Luk, Ting S., Decker, Manuel, Neshev, Dragomir N., Brener, Igal, & Kivshar, Yuri S.. Polarization-independent silicon metadevices for efficient optical wavefront control. United States. doi:10.1021/acs.nanolett.5b01752.
Chong, Katie E., Staude, Isabelle, James, Anthony Randolph, Dominguez, Jason James, Liu, Sheng, Campione, Salvatore, Subramania, Ganapathi Subramanian, Luk, Ting S., Decker, Manuel, Neshev, Dragomir N., Brener, Igal, and Kivshar, Yuri S.. 2015. "Polarization-independent silicon metadevices for efficient optical wavefront control". United States. doi:10.1021/acs.nanolett.5b01752. https://www.osti.gov/servlets/purl/1235323.
@article{osti_1235323,
title = {Polarization-independent silicon metadevices for efficient optical wavefront control},
author = {Chong, Katie E. and Staude, Isabelle and James, Anthony Randolph and Dominguez, Jason James and Liu, Sheng and Campione, Salvatore and Subramania, Ganapathi Subramanian and Luk, Ting S. and Decker, Manuel and Neshev, Dragomir N. and Brener, Igal and Kivshar, Yuri S.},
abstractNote = {In this study, 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 0–2π 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.},
doi = {10.1021/acs.nanolett.5b01752},
journal = {Nano Letters},
number = 8,
volume = 15,
place = {United States},
year = {2015},
month = {7}
}