Journal article
Snapshot Hyperspectral Imaging (SHI) for Revealing Irreversible and Heterogeneous Plasmonic Processes
SR Kirchner, KW Smith, BS Hoener, SSE Collins, W Wang, YY Cai, C Kinnear, H Zhang, WS Chang, P Mulvaney, CF Landes, S Link
Journal of Physical Chemistry C | AMER CHEMICAL SOC | Published : 2018
Abstract
Plasmon-mediated processes provide unique opportunities for selective photocatalysis, photovoltaics, and electrochemistry. Determining the influence of particle heterogeneity is an unsolved problem because often such processes introduce irreversible changes to the nanocatalysts and/or their surroundings. The challenge lies in monitoring heterogeneous nonequilibrium dynamics via the slow, serial methods that are intrinsic to almost all spectral acquisition methods with suitable spatial and/or spectral resolution. Here, we present a new metrology, snapshot hyperspectral imaging (SHI), that facilitates in situ readout of the tube lens image and first-order diffraction image of the dark-field sc..
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Awarded by National Science Foundation
Funding Acknowledgements
The DOE BES (DE-SC0016534 to SL and CFL) supported B.S.H. who performed the electrochemical measurements and W.-S.C. who designed experiments and setup, performed experiments, and wrote the manuscript with direction from C.F.L. and S.L. S. R. Kirchner thanks the German Research Foundation (DFG) for support of this work, while K. W. Smith acknowledges that this material is based upon work supported by the National Science Foundation Graduate Research Fellowship Program (0940902). This work was also partially supported by the Robert A. Welch Foundation (C-1664 to S.L. and C-1787 to C.F.L.), the National Science Foundation (CHE1507745 to S.L.), and the Air Force Office of Scientific Research (MURI FA9550-15-1-0022 to S.L.).