Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity
Vibrational transitions contain some of the richest fingerprints of molecules and materials, providing considerable physicochemical information. Vibrational transitions can be characterized by different spectroscopies, and alternatively by several imaging techniques enabling to reach sub-microscopic...
Main Authors: | , |
---|---|
Format: | Article |
Language: | English |
Published: |
Beilstein-Institut
2014-11-01
|
Series: | Beilstein Journal of Nanotechnology |
Subjects: | |
Online Access: | https://doi.org/10.3762/bjnano.5.237 |
id |
doaj-aab3a4bec4ef446fb96e128000cb2f88 |
---|---|
record_format |
Article |
spelling |
doaj-aab3a4bec4ef446fb96e128000cb2f882020-11-24T21:08:14ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862014-11-01512275229210.3762/bjnano.5.2372190-4286-5-237Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivityDan Lis0Francesca Cecchet1Research Centre in Physics of Matter and Radiation (PMR), University of Namur (UNamur), 61 rue de Bruxelles, B-5000 Namur, BelgiumResearch Centre in Physics of Matter and Radiation (PMR), University of Namur (UNamur), 61 rue de Bruxelles, B-5000 Namur, BelgiumVibrational transitions contain some of the richest fingerprints of molecules and materials, providing considerable physicochemical information. Vibrational transitions can be characterized by different spectroscopies, and alternatively by several imaging techniques enabling to reach sub-microscopic spatial resolution. In a quest to always push forward the detection limit and to lower the number of needed vibrational oscillators to get a reliable signal or imaging contrast, surface plasmon resonances (SPR) are extensively used to increase the local field close to the oscillators. Another approach is based on maximizing the collective response of the excited vibrational oscillators through molecular coherence. Both features are often naturally combined in vibrational nonlinear optical techniques. In this frame, this paper reviews the main achievements of the two most common vibrational nonlinear optical spectroscopies, namely surface-enhanced sum-frequency generation (SE-SFG) and surface-enhanced coherent anti-Stokes Raman scattering (SE-CARS). They can be considered as the nonlinear counterpart and/or combination of the linear surface-enhanced infrared absorption (SEIRA) and surface-enhanced Raman scattering (SERS) techniques, respectively, which are themselves a branching of the conventional IR and spontaneous Raman spectroscopies. Compared to their linear equivalent, those nonlinear vibrational spectroscopies have proved to reach higher sensitivity down to the single molecule level, opening the way to astonishing perspectives for molecular analysis.https://doi.org/10.3762/bjnano.5.237coherent anti-Stokes Raman scattering (CARS)nonlinear optical spectroscopiessum-frequency generation (SFG)surfaces plasmon resonancevibrational spectroscopies |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Dan Lis Francesca Cecchet |
spellingShingle |
Dan Lis Francesca Cecchet Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity Beilstein Journal of Nanotechnology coherent anti-Stokes Raman scattering (CARS) nonlinear optical spectroscopies sum-frequency generation (SFG) surfaces plasmon resonance vibrational spectroscopies |
author_facet |
Dan Lis Francesca Cecchet |
author_sort |
Dan Lis |
title |
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
title_short |
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
title_full |
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
title_fullStr |
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
title_full_unstemmed |
Localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
title_sort |
localized surface plasmon resonances in nanostructures to enhance nonlinear vibrational spectroscopies: towards an astonishing molecular sensitivity |
publisher |
Beilstein-Institut |
series |
Beilstein Journal of Nanotechnology |
issn |
2190-4286 |
publishDate |
2014-11-01 |
description |
Vibrational transitions contain some of the richest fingerprints of molecules and materials, providing considerable physicochemical information. Vibrational transitions can be characterized by different spectroscopies, and alternatively by several imaging techniques enabling to reach sub-microscopic spatial resolution. In a quest to always push forward the detection limit and to lower the number of needed vibrational oscillators to get a reliable signal or imaging contrast, surface plasmon resonances (SPR) are extensively used to increase the local field close to the oscillators. Another approach is based on maximizing the collective response of the excited vibrational oscillators through molecular coherence. Both features are often naturally combined in vibrational nonlinear optical techniques. In this frame, this paper reviews the main achievements of the two most common vibrational nonlinear optical spectroscopies, namely surface-enhanced sum-frequency generation (SE-SFG) and surface-enhanced coherent anti-Stokes Raman scattering (SE-CARS). They can be considered as the nonlinear counterpart and/or combination of the linear surface-enhanced infrared absorption (SEIRA) and surface-enhanced Raman scattering (SERS) techniques, respectively, which are themselves a branching of the conventional IR and spontaneous Raman spectroscopies. Compared to their linear equivalent, those nonlinear vibrational spectroscopies have proved to reach higher sensitivity down to the single molecule level, opening the way to astonishing perspectives for molecular analysis. |
topic |
coherent anti-Stokes Raman scattering (CARS) nonlinear optical spectroscopies sum-frequency generation (SFG) surfaces plasmon resonance vibrational spectroscopies |
url |
https://doi.org/10.3762/bjnano.5.237 |
work_keys_str_mv |
AT danlis localizedsurfaceplasmonresonancesinnanostructurestoenhancenonlinearvibrationalspectroscopiestowardsanastonishingmolecularsensitivity AT francescacecchet localizedsurfaceplasmonresonancesinnanostructurestoenhancenonlinearvibrationalspectroscopiestowardsanastonishingmolecularsensitivity |
_version_ |
1716760357267046400 |