Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms

doi:10.1002/adom.201500222

Title: Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms

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Artificially created surfaces or metasurfaces, composed of appropriately shaped subwavelength structures, namely, meta-atoms, control light at subwavelength scales. Historically, metasurfaces have used radiating metallic resonators as subwavelength inclusions. However, while resonant optical metasurfaces made from metal have been sufficiently subwavelength in the propagation direction, they are too lossy for many applications. Metasurfaces made out of radiating dielectric resonators have been proposed to solve the loss problem, but are marginally subwavelength at optical frequencies. We designed subwavelength resonators made out of nonradiating dielectrics. The resonators are decorated with appropriately placed scatterers, resulting in a meta-atom with an engineered electromagnetic response. A metasurface that yields an electric response is fabricated, experimentally characterized, and a method to obtain a magnetic response at optical frequencies is theoretically demonstrated. In conclusion, this design methodology paves the way for metasurfaces that are simultaneously subwavelength and low loss.

Authors:

Jain, Aditya ^[1] ; Moitra, Parikshit ^[2] ; Koschny, Thomas ^[1] ; Valentine, Jason ^[2] ; Soukoulis, Costas M. ^[3]

Iowa State Univ., Ames, IA (United States)
Vanderbilt Univ., Nashville, TN (United States)
Iowa State Univ., Ames, IA (United States); Inst. of Electronic Structure and Lasers (IESL), Crete (Greece)

Publication Date:: 2015-07-14

Report Number(s):: IS-J-8815
Journal ID: ISSN 2195-1071

Grant/Contract Number:: AC02-07CH11358

Type:: Accepted Manuscript

Journal Name:: Advanced Optical Materials

Additional Journal Information:: Journal Volume: 3; Journal Issue: 10; Journal ID: ISSN 2195-1071

Publisher:: Wiley

Research Org:: Ames Laboratory (AMES), Ames, IA (United States)

Sponsoring Org:: USDOE

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; dark resonators; non-resonant scatterers; electric response; magnetic response

OSTI Identifier:: 1227396


                    Jain, Aditya, Moitra, Parikshit, Koschny, Thomas, Valentine, Jason, and Soukoulis, Costas M. Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms.  United States: N. p.,  
        Web.  doi:10.1002/adom.201500222.

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                    Jain, Aditya, Moitra, Parikshit, Koschny, Thomas, Valentine, Jason, & Soukoulis, Costas M. Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms.  United States.  doi:10.1002/adom.201500222.

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                    Jain, Aditya, Moitra, Parikshit, Koschny, Thomas, Valentine, Jason, and Soukoulis, Costas M. 2015.  
        "Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms".  United States.  
        doi:10.1002/adom.201500222.  https://www.osti.gov/servlets/purl/1227396.

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@article{osti_1227396,

  title        = {Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms},

  author       = {Jain, Aditya and Moitra, Parikshit and Koschny, Thomas and Valentine, Jason and Soukoulis, Costas M.},

  abstractNote = {Artificially created surfaces or metasurfaces, composed of appropriately shaped subwavelength structures, namely, meta-atoms, control light at subwavelength scales. Historically, metasurfaces have used radiating metallic resonators as subwavelength inclusions. However, while resonant optical metasurfaces made from metal have been sufficiently subwavelength in the propagation direction, they are too lossy for many applications. Metasurfaces made out of radiating dielectric resonators have been proposed to solve the loss problem, but are marginally subwavelength at optical frequencies. We designed subwavelength resonators made out of nonradiating dielectrics. The resonators are decorated with appropriately placed scatterers, resulting in a meta-atom with an engineered electromagnetic response. A metasurface that yields an electric response is fabricated, experimentally characterized, and a method to obtain a magnetic response at optical frequencies is theoretically demonstrated. In conclusion, this design methodology paves the way for metasurfaces that are simultaneously subwavelength and low loss.},

  doi          = {10.1002/adom.201500222},

  journal      = {Advanced Optical Materials},

  number       = 10,

  volume       = 3,

  place        = {United States},

  year         = {2015},

  month        = {7}

}

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Accepted Manuscript (DOE)
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10.1002/adom.201500222
https://doi.org/10.1002/adom.201500222

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Title: Electric and magnetic response in dielectric dark states for low loss subwavelength optical meta atoms

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