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Encai Hao
Researcher at Northwestern University
Publications - 9
Citations - 4865
Encai Hao is an academic researcher from Northwestern University. The author has contributed to research in topics: Plasmon & Discrete dipole approximation. The author has an hindex of 8, co-authored 9 publications receiving 4667 citations.
Papers
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Journal ArticleDOI
Electromagnetic fields around silver nanoparticles and dimers.
Encai Hao,George C. Schatz +1 more
TL;DR: The discrete dipole approximation is used to investigate the electromagnetic fields induced by optical excitation of localized surface plasmon resonances of silver nanoparticles, including monomers and dimers, with emphasis on what size, shape, and arrangement leads to the largest local electric field (E-field) enhancement near the particle surfaces.
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Controlling anisotropic nanoparticle growth through plasmon excitation
TL;DR: It is demonstrated that the previously described photoinduced method for converting silver nanospheres into triangular silver nanocrystals—so-called nanoprisms—can be extended to synthesize relatively monodisperse nanoprism with desired edge lengths in the 30–120 nm range.
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Synthesis and Optical Properties of ``Branched'' Gold Nanocrystals
TL;DR: In this paper, the authors reported the synthesis of new "branched" gold nanocrystals in high yield (over 90%) via a wet-chemical route, which exhibited a shape-dependent plasmon resonance that is red-shifted by 130−180 nm from the spherical particle wavelength.
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Synthesis and Optical Properties of Anisotropic Metal Nanoparticles
TL;DR: This paper overviews recent studies of anisotropic noble metal nanoparticles, in which a combination of theory and experiment has been used to elucidate the extinction spectra of the particles, as well as information related to their surface enhanced Raman spectroscopy.
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Optical properties of metal nanoshells
TL;DR: In this article, a combination of theory and experiment designed to elucidate the properties of gold nanoshells is presented, showing that 2−5 nm pinholes have only a small effect on the extinction spectra; however, they lead to local electric fields that are enhanced by a factor of 3−4 close to the plasmon maximum.