Gold nanorods: the most versatile plasmonic nanoparticles

J Zheng, X Cheng, H Zhang, X Bai, R Ai… - Chemical …, 2021 - ACS Publications
Gold nanorods (NRs), pseudo-one-dimensional rod-shaped nanoparticles (NPs), have
become one of the burgeoning materials in the recent years due to their anisotropic shape …

Single-particle scattering spectroscopy: fundamentals and applications

A Al-Zubeidi, LA McCarthy, A Rafiei-Miandashti… - …, 2021 - degruyter.com
Metallic nanoparticles supporting a localized surface plasmon resonance have emerged as
promising platforms for nanoscopic labels, sensors, and (photo-) catalysts. To use …

From SERS to TERS and beyond: Molecules as probes of nanoscopic optical fields

PZ El-Khoury, ZD Schultz - The Journal of Physical Chemistry C, 2020 - ACS Publications
A detailed understanding of the interaction between molecules and plasmonic
nanostructures is important for several exciting developments in (bio) molecular sensing and …

Tip-enhanced raman scattering on both sides of the schrödinger equation

PZ El-Khoury - Accounts of Chemical Research, 2021 - ACS Publications
Conspectus Historically, molecular spectroscopists have focused their attention to the right-
hand side of the Schrödinger equation. Our major goal had and still has to do with …

Multimodal tip-enhanced nonlinear optical nanoimaging of plasmonic silver nanocubes

CF Wang, PZ El-Khoury - The Journal of Physical Chemistry …, 2021 - ACS Publications
Optical field localization at plasmonic tip–sample nanojunctions has enabled high-spatial-
resolution chemical analysis through tip-enhanced linear optical spectroscopies, including …

Spatiotemporal imaging and manipulation of surface plasmons

KT Crampton, AG Joly, Y Gong, P El-Khoury - Nanophotonics, 2024 - degruyter.com
Surface plasmon polaritons (SPPs) are travelling surface waves that have shown promise
for applications in nanophotonics as they provide a direct route toward photon-mediated …

Spatially resolved mapping of three-dimensional molecular orientations with∼ 2 nm spatial resolution through tip-enhanced Raman scattering

PZ El-Khoury, E Aprà - The Journal of Physical Chemistry C, 2020 - ACS Publications
We record local optical field images of silver nanocubes (75 nm) using tip-enhanced Raman
(TER) spectral imaging. The images that we observe are consistent with several recent …

Ambient tip-enhanced photoluminescence with 5 nm spatial resolution

CF Wang, M Zamkov, PZ El-Khoury - The Journal of Physical …, 2021 - ACS Publications
We achieve record spatial resolution in ambient tip-enhanced photoluminescence (TEPL)
from CdSe/ZnS semiconductor quantum dots (QDs). Our approach only takes advantage of …

Electromagnetic field gradient-enhanced Raman scattering in TERS configurations

L Meng, Y Wang, M Gao, M Sun - The Journal of Physical …, 2021 - ACS Publications
Realizing in situ simultaneous measurement of full vibrational modes in tip-enhanced
Raman spectroscopy (TERS) is of immense importance for improving the ability of …

Imaging plasmons with sub-2 nm spatial resolution via tip-enhanced four-wave mixing

CF Wang, PZ El-Khoury - The Journal of Physical Chemistry …, 2021 - ACS Publications
Four-wave mixing at plasmonic tip–sample nanojunctions may be used to visualize
plasmonic fields with sub-2 nm spatial resolution under ambient laboratory conditions. We …