skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Spatio-Spectral Characterization of Multipolar Plasmonic Modes of Au Nanorods via Tip-Enhanced Raman Scattering

Journal Article · · Journal of Physical Chemistry Letters

Tip-enhanced Raman (TER) spectral images of 4-thiobenzonitrile-coated Au nanorods map the spatial profiles and trace the resonances of dipolar and multipolar plasmonic modes that are characteristic of the imaged particles. For any particular rod, we observe sequential transitions between high-order modes at low frequency shifts and lower-order modes at higher frequencies. We also notice that higher-order modes (up to $$m$$ = 4) are generally observed for long rods as compared to their shorter analogues, where longitudinal dipolar resonances ($$m$$ = 1) are observable. In effect, this research adds a new dimension to local optical field mapping via TERS, which we have previously explored. Not only can the magnitudes, vector components, local/nonlocal characters of local optical fields be imaged through molecular TERS, but spatially varying local optical resonances are also direct observables.

Research Organization:
Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
Grant/Contract Number:
AC05-76RL01830
OSTI ID:
1633617
Report Number(s):
PNNL-SA-151304
Journal Information:
Journal of Physical Chemistry Letters, Vol. 11, Issue 8; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 18 works
Citation information provided by
Web of Science

References (38)

Electromagnetic fields around silver nanoparticles and dimers journal January 2004
Plasmons in Strongly Coupled Metallic Nanostructures journal June 2011
Single Molecule Detection Using Surface-Enhanced Raman Scattering (SERS) journal March 1997
Probing Single Molecules and Single Nanoparticles by Surface-Enhanced Raman Scattering journal February 1997
Raman spectra of pyridine adsorbed at a silver electrode journal May 1974
Surface raman spectroelectrochemistry: Part I. Heterocyclic, aromatic, and aliphatic amines adsorbed on the anodized silver electrode journal November 1977
Surface roughness and the enhanced intensity of Raman scattering by molecules adsorbed on metals journal November 1978
Single nanoparticle plasmonics journal January 2013
Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes journal March 2018
Imaging the chemical activity of single nanoparticles with optical microscopy journal January 2018
Optical stethoscopy: Image recording with resolution λ/20 journal April 1984
Breaking the Diffraction Barrier: Optical Microscopy on a Nanometric Scale journal March 1991
Principles of Nano-Optics book January 2006
Optical excitations in electron microscopy journal February 2010
Mapping plasmons at the nanometer scale in an electron microscope journal January 2014
Limits to the spatial, energy and momentum resolution of electron energy-loss spectroscopy journal August 2007
Mapping surface plasmons on a single metallic nanoparticle journal April 2007
Vibrational spectroscopy in the electron microscope journal October 2014
Good vibrations journal October 2014
Correlated Optical Measurements and Plasmon Mapping of Silver Nanorods journal August 2011
Probing Bright and Dark Surface-Plasmon Modes in Individual and Coupled Noble Metal Nanoparticles Using an Electron Beam journal January 2009
Observation of Quantum Tunneling between Two Plasmonic Nanoparticles journal January 2013
Evolution of Plasmonic Metamolecule Modes in the Quantum Tunneling Regime journal December 2015
Electron energy-loss spectroscopy in the TEM journal December 2008
Multipolar Plasmonic Resonances in Silver Nanowire Antennas Imaged with a Subnanometer Electron Probe journal April 2011
High-Resolution Imaging and Spectroscopy of Multipolar Plasmonic Resonances in Aluminum Nanoantennas journal September 2014
Visualizing surface plasmons with photons, photoelectrons, and electrons journal January 2016
Nanoimaging and Control of Molecular Vibrations through Electromagnetically Induced Scattering Reaching the Strong Coupling Regime journal August 2018
Multipolar Plasmon Resonances in Individual Ag Nanorice journal March 2010
Near-field optical imaging of plasmon modes in gold nanorods journal April 2005
Imaging the Optical Fields of Functionalized Silver Nanowires through Molecular TERS journal December 2018
Tip-Enhanced Raman Nanographs of Plasmonic Silver Nanoparticles journal October 2019
Mastering high resolution tip-enhanced Raman spectroscopy: towards a shift of perception journal January 2017
Tip-Enhanced Multipolar Raman Scattering journal March 2020
A Closer Look at Corrugated Au Tips journal February 2020
Visualizing Electric Fields at Au(111) Step Edges via Tip-Enhanced Raman Scattering journal October 2017
Imaging localized electric fields with nanometer precision through tip-enhanced Raman scattering journal January 2017
Tip-Enhanced Raman Nanospectroscopy of Smooth Spherical Gold Nanoparticles journal February 2020

Similar Records

Tip-Enhanced Multipolar Raman Scattering
Journal Article · Thu Apr 02 00:00:00 EDT 2020 · Journal of Physical Chemistry Letters · OSTI ID:1633617

Power-Dependent Dual Analyte Tip-Enhanced Raman Spectral Imaging
Journal Article · Thu Jun 18 00:00:00 EDT 2020 · Journal of Physical Chemistry. C · OSTI ID:1633617

A Closer Look at Corrugated Au Tips
Journal Article · Thu Mar 05 00:00:00 EST 2020 · The Journal of Physical Chemistry Letters · OSTI ID:1633617