Adiabatic compression of surface plasmon polaritons for label-free few molecules detection by means of Raman scattering

F. De Angelis; G. Das; P. Candeloro; C. Liberale; F. Mecarini; A. Pujia; E. Di Fabrizio

doi:10.1016/j.mee.2009.12.060

Adiabatic compression of surface plasmon polaritons for label-free few molecules detection by means of Raman scattering

F. De Angelis^*, G. Das, P. Candeloro, C. Liberale, F. Mecarini, A. Pujia, E. Di Fabrizio

^*Corresponding author for this work

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

5 Scopus citations

Abstract

In this paper we report the fabrication and characterization of a plasmonic device for label-free detection of few molecules in sub-wavelength regime by means of Raman scattering. The device is based on the coupling between a gold nanocone and a photonic crystal cavity, that is able to excite surface plasmon polaritons (SPPs) at the base on the cone. During the propagation toward the tip of the cone, the SPPs experiment and adiabatic compression that allow the accumulation of a very high electric field at the tip end. Raman enhancement factor of more than five order of magnitude is reported for a tip with a radius of curvature of about 10 nm. The present results open up future perspective on single molecule detection even in combination with AFM measurements.

Original language	English (US)
Pages (from-to)	1312-1314
Number of pages	3
Journal	Microelectronic Engineering
Volume	87
Issue number	5-8
DOIs	https://doi.org/10.1016/j.mee.2009.12.060
State	Published - May 2010
Externally published	Yes

Keywords

AFM
Adiabatic compression
Photonic crystal
Plasmon
Raman
SERS
Single molecule detection

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Condensed Matter Physics
Surfaces, Coatings and Films
Electrical and Electronic Engineering

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10.1016/j.mee.2009.12.060

Cite this

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title = "Adiabatic compression of surface plasmon polaritons for label-free few molecules detection by means of Raman scattering",

abstract = "In this paper we report the fabrication and characterization of a plasmonic device for label-free detection of few molecules in sub-wavelength regime by means of Raman scattering. The device is based on the coupling between a gold nanocone and a photonic crystal cavity, that is able to excite surface plasmon polaritons (SPPs) at the base on the cone. During the propagation toward the tip of the cone, the SPPs experiment and adiabatic compression that allow the accumulation of a very high electric field at the tip end. Raman enhancement factor of more than five order of magnitude is reported for a tip with a radius of curvature of about 10 nm. The present results open up future perspective on single molecule detection even in combination with AFM measurements.",

keywords = "AFM, Adiabatic compression, Photonic crystal, Plasmon, Raman, SERS, Single molecule detection",

author = "{De Angelis}, F. and G. Das and P. Candeloro and C. Liberale and F. Mecarini and A. Pujia and {Di Fabrizio}, E.",

year = "2010",

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doi = "10.1016/j.mee.2009.12.060",

language = "English (US)",

volume = "87",

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T1 - Adiabatic compression of surface plasmon polaritons for label-free few molecules detection by means of Raman scattering

AU - De Angelis, F.

AU - Das, G.

AU - Candeloro, P.

AU - Liberale, C.

AU - Mecarini, F.

AU - Pujia, A.

AU - Di Fabrizio, E.

PY - 2010/5

Y1 - 2010/5

N2 - In this paper we report the fabrication and characterization of a plasmonic device for label-free detection of few molecules in sub-wavelength regime by means of Raman scattering. The device is based on the coupling between a gold nanocone and a photonic crystal cavity, that is able to excite surface plasmon polaritons (SPPs) at the base on the cone. During the propagation toward the tip of the cone, the SPPs experiment and adiabatic compression that allow the accumulation of a very high electric field at the tip end. Raman enhancement factor of more than five order of magnitude is reported for a tip with a radius of curvature of about 10 nm. The present results open up future perspective on single molecule detection even in combination with AFM measurements.

AB - In this paper we report the fabrication and characterization of a plasmonic device for label-free detection of few molecules in sub-wavelength regime by means of Raman scattering. The device is based on the coupling between a gold nanocone and a photonic crystal cavity, that is able to excite surface plasmon polaritons (SPPs) at the base on the cone. During the propagation toward the tip of the cone, the SPPs experiment and adiabatic compression that allow the accumulation of a very high electric field at the tip end. Raman enhancement factor of more than five order of magnitude is reported for a tip with a radius of curvature of about 10 nm. The present results open up future perspective on single molecule detection even in combination with AFM measurements.

KW - AFM

KW - Adiabatic compression

KW - Photonic crystal

KW - Plasmon

KW - Raman

KW - SERS

KW - Single molecule detection

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JO - Microelectronic Engineering

JF - Microelectronic Engineering

IS - 5-8

ER -

Adiabatic compression of surface plasmon polaritons for label-free few molecules detection by means of Raman scattering

Abstract

Keywords

ASJC Scopus subject areas

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