Nanostructured dielectric surfaces for Raman spectroscopy: design and thermal analysis

L.P. (Pjotr) Stoevelaar, Jernej Černigoj, Jonas Berzins, F. Silvestri, Giampiero Gerini

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

Samenvatting

In this paper, an all-dielectric metasurface for surface enhanced Raman spectroscopy (SERS) is presented. The proposed design constitutes of an array of silicon (Si) dimers on top of thin film of silicon nitride (SiN), deposited on a glass substrate. The coupling mechanism between the dimers is based on two orthogonal guided waves in the SiN film. These guided modes lead to a strong separation between excitation and emitted Raman signal in the waveguide. The new design is compared to a previously published dielectric design with a gold backing mirror. The comparison takes into account manufacturability, field enhancement and thermal aspects. This shows that the all-dielectric design has about 7 times less power dissipation but the enhancement factor is about 20 times smaller.
Originele taal-2Engels
TitelMetamaterials, Metadevices, and Metasystems 2019
RedacteurenNader Engheta, Mikhail A. Noginov, Nikolay I. Zheludev
Plaats van productieBellingham
UitgeverijSPIE
Aantal pagina's4
ISBN van elektronische versie9781510628533
DOI's
StatusGepubliceerd - 2019
EvenementSPIE Nanoscience + Engineering - San Diego Convention Center, San Diego, Verenigde Staten van Amerika
Duur: 11 aug. 201915 aug. 2019

Publicatie series

NaamProceedings of SPIE
Volume11080
ISSN van geprinte versie0277-786X
ISSN van elektronische versie1996-756X

Congres

CongresSPIE Nanoscience + Engineering
Land/RegioVerenigde Staten van Amerika
StadSan Diego
Periode11/08/1915/08/19

Trefwoorden

  • SERS
  • All dielectric metasurface
  • Field enhancement
  • silicon dimers
  • waveguide

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