Zobrazeno 1 - 10
of 21
pro vyhledávání: '"Kevin T. Crampton"'
Publikováno v:
Nanophotonics, Vol 10, Iss 2, Pp 959-965 (2020)
We demonstrate control over the spatial and temporal properties of surface plasmon polaritons (SPPs) launched from nanohole arrays in silver. The arrays provide wave vector matching to allow the conversion of free-space photons into counter-propagati
Publikováno v:
ACS Nano. 13:6363-6371
Tip-enhanced Raman scattering (TERS) with a cobalt tetraphenylporphyrin (CoTPP)- terminated silver tip is used to obtain ion-selective, atomically resolved images of an insulating Cu2N monolayer gr...
Publikováno v:
Nature. 568:78-82
The internal vibrations of molecules drive the structural transformations that underpin chemistry and cellular function. While vibrational frequencies are measured by spectroscopy, the normal modes of motion are inferred through theory because their
Publikováno v:
Applied Physics Letters. 120:081102
The role of surface plasmon polaritons (SPPs) in nanohole array optical extinction spectra is explored using a time-resolved technique capable of isolating the air/metal interfacial SPP contribution to the typical Fano profile in optical transmission
Publikováno v:
The Journal of chemical physics. 153(8)
Directional control over surface plasmon polariton (SPP) waves is a prerequisite for the development of miniaturized optical circuitry. Here, the efficacy of single and dual component SPP steering elements is explored through photoemission electron m
Publikováno v:
Engelbrekt, C, Crampton, K T, Fishman, D A, Law, M & Apkarian, V A 2020, ' Efficient Plasmon-Mediated Energy Funneling to the Surface of Au@Pt Core-Shell Nanocrystals ', ACS Nano, vol. 14, no. 4, pp. 5061-5074 . https://doi.org/10.1021/acsnano.0c01653
The structure and ultrafast photodynamics of ∼8 nm Au@Pt core–shell nanocrystals with ultrathin (
Autor:
Patrick Z. El-Khoury, Matthew R. Jones, Brian T. O'Callahan, Zhihua Cheng, Kevin T. Crampton, Chih-Feng Wang
Publikováno v:
The journal of physical chemistry letters. 11(7)
We record nanoscale chemical images of thiobenzonitrile (TBN)-functionalized plasmonic gold nanocubes via tip-enhanced Raman spectroscopy (TERS). The spatially averaged optical response is dominated by conventional (dipolar) TERS scattering from TBN
Autor:
Alan G. Joly, Ashish Bhattarai, Kevin T. Crampton, Patrick Z. El-Khoury, Zachary D. Schultz, Chih-Feng Wang
Publikováno v:
The journal of physical chemistry letters. 11(5)
A series of optical and electron microscopies are utilized in concert to unravel the properties of corrugated metallic tips. While the overall microscopic shapes of the tips dictate their optical resonances and plasmonic field enhancement factors, na
Autor:
Tengyue Jian, Chun-Long Chen, A. Scott Lea, James E. Evans, Kevin T. Crampton, Patrick Z. El-Khoury, Brian T. O'Callahan, Irina V. Novikova, Markus B. Raschke
Publikováno v:
The Journal of Physical Chemistry C. 122:24891-24895
The mechanisms of interface biochemistry are often obscured through ensemble averaging of complex networks of proteins that exhibit varying degrees of structural heterogeneity. Here, we perform nanometer spatially resolved chemical spectroscopy using
Autor:
Eric J. Bylaska, Wayne P. Hess, Patrick Z. El-Khoury, Ashish Bhattarai, Edoardo Aprà, Kevin T. Crampton, Niranjan Govind
Publikováno v:
The Journal of Physical Chemistry A. 122:7437-7442
Nonequilibrium chemical phenomena are known to play an important role in single molecule microscopy and spectroscopy. Herein, we explore these effects through ab initio molecular dynamics (AIMD)-based Raman spectral simulations. We target an isolated