Surface-enhanced raman scattering in purely dielectric structures via bloch surface waves

S. Pirotta; X. G. Xu; A. Delfan; S. Mysore; S. Maiti; G. Dacarro; M. Patrini; M. Galli; G. Guizzetti; D. Bajoni; J. E. Sipe; G. C. Walker; M. Liscidini

doi:10.1021/jp400223f

Surface-enhanced raman scattering in purely dielectric structures via bloch surface waves

S. Pirotta
, X. G. Xu
, A. Delfan
, S. Mysore
, S. Maiti
, G. Dacarro
, M. Patrini
, M. Galli
, G. Guizzetti
, D. Bajoni
, J. E. Sipe
, G. C. Walker
, M. Liscidini

Chemistry

University of Pavia
University of Toronto
Tata Institute of Fundamental Research

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

58 Scopus citations

Abstract

We study surface-enhanced Raman scattering (SERS) in fully dielectric periodic structures supporting Bloch surface waves. We demonstrate a lower bound for the SERS enhancement of 50 when the optical pump is resonantly coupled to the Bloch surface wave supported by the structure. A corresponding photoluminescence experiment shows an emission enhancement of more than two orders of magnitude, suggesting that the actual SERS enhancement is ∼200. Analogous conclusions are obtained by means of a semiclassical theoretical model. These results suggest an alternative to plasmonic materials to enhance Raman scattering at a surface and are of interest to those working in the field of Raman as well as fluorescence spectroscopy.

Original language	English
Pages (from-to)	6821-6825
Number of pages	5
Journal	Journal of Physical Chemistry C
Volume	117
Issue number	13
DOIs	https://doi.org/10.1021/jp400223f
State	Published - Apr 4 2013

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title = "Surface-enhanced raman scattering in purely dielectric structures via bloch surface waves",

abstract = "We study surface-enhanced Raman scattering (SERS) in fully dielectric periodic structures supporting Bloch surface waves. We demonstrate a lower bound for the SERS enhancement of 50 when the optical pump is resonantly coupled to the Bloch surface wave supported by the structure. A corresponding photoluminescence experiment shows an emission enhancement of more than two orders of magnitude, suggesting that the actual SERS enhancement is ∼200. Analogous conclusions are obtained by means of a semiclassical theoretical model. These results suggest an alternative to plasmonic materials to enhance Raman scattering at a surface and are of interest to those working in the field of Raman as well as fluorescence spectroscopy.",

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doi = "10.1021/jp400223f",

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T1 - Surface-enhanced raman scattering in purely dielectric structures via bloch surface waves

AU - Pirotta, S.

AU - Xu, X. G.

AU - Delfan, A.

AU - Mysore, S.

AU - Maiti, S.

AU - Dacarro, G.

AU - Patrini, M.

AU - Galli, M.

AU - Guizzetti, G.

AU - Bajoni, D.

AU - Sipe, J. E.

AU - Walker, G. C.

AU - Liscidini, M.

PY - 2013/4/4

Y1 - 2013/4/4

N2 - We study surface-enhanced Raman scattering (SERS) in fully dielectric periodic structures supporting Bloch surface waves. We demonstrate a lower bound for the SERS enhancement of 50 when the optical pump is resonantly coupled to the Bloch surface wave supported by the structure. A corresponding photoluminescence experiment shows an emission enhancement of more than two orders of magnitude, suggesting that the actual SERS enhancement is ∼200. Analogous conclusions are obtained by means of a semiclassical theoretical model. These results suggest an alternative to plasmonic materials to enhance Raman scattering at a surface and are of interest to those working in the field of Raman as well as fluorescence spectroscopy.

AB - We study surface-enhanced Raman scattering (SERS) in fully dielectric periodic structures supporting Bloch surface waves. We demonstrate a lower bound for the SERS enhancement of 50 when the optical pump is resonantly coupled to the Bloch surface wave supported by the structure. A corresponding photoluminescence experiment shows an emission enhancement of more than two orders of magnitude, suggesting that the actual SERS enhancement is ∼200. Analogous conclusions are obtained by means of a semiclassical theoretical model. These results suggest an alternative to plasmonic materials to enhance Raman scattering at a surface and are of interest to those working in the field of Raman as well as fluorescence spectroscopy.

UR - https://www.scopus.com/pages/publications/84875825877

U2 - 10.1021/jp400223f

DO - 10.1021/jp400223f

M3 - Article

AN - SCOPUS:84875825877

SN - 1932-7447

VL - 117

SP - 6821

EP - 6825

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

IS - 13

ER -

Surface-enhanced raman scattering in purely dielectric structures via bloch surface waves

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