Supplemental Information for: Ultrafast carrier experimental and ab initio dynamics in plasmonic nanoparticles
نویسندگان
چکیده
Ana M. Brown, Ravishankar Sundararaman, Prineha Narang, 2, 3 Adam M. Schwartzberg, William A. Goddard III, 5 and Harry A. Atwater 2 Thomas J. Watson Laboratories of Applied Physics, California Institute of Technology Joint Center for Artificial Photosynthesis, California Institute of Technology NG NEXT, 1 Space Park Drive, Redondo Beach CA The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley CA Materials and Process Simulation Center, California Institute of Technology, 1200 East California Blvd, Pasadena CA 91125 USA (Dated: December 17, 2016)
منابع مشابه
Experimental and Ab Initio Ultrafast Carrier Dynamics in Plasmonic Nanoparticles.
Ultrafast pump-probe measurements of plasmonic nanostructures probe the nonequilibrium behavior of excited carriers, which involves several competing effects obscured in typical empirical analyses. Here we present pump-probe measurements of plasmonic nanoparticles along with a complete theoretical description based on first-principles calculations of carrier dynamics and optical response, free ...
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Hot carrier dynamics critically impacts the performance of electronic, optoelectronic, photovoltaic, and plasmonic devices. Hot carriers lose energy over nanometer lengths and picosecond timescales and thus are challenging to study experimentally, whereas calculations of hot carrier dynamics are cumbersome and dominated by empirical approaches. In this work, we present ab initio calculations of...
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!!!!!How does an excited electron lose its energy? This problem is central in fields ranging from condensed matter physics to electrical engineering and energy. We developed and applied calculations to study the dynamics of out-of-equilibrium charge carriers – also known as hot carriers (HCs) – in semiconductors and metals [1–3]. We present ab initio calculations of electron-phonon, electron-el...
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Surface plasmon resonances confine electromagnetic fields to the nanoscale, producing high field strengths suitable for exploiting nonlinear optical properties. We examine the prospect of detecting and utilizing one such property in plasmonic metals: the imaginary part of the cubic susceptibility, which corresponds to two plasmons decaying together to produce high energy carriers. Here we prese...
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Nanocomposite materials, including noble metal nanoparticles embedded in a dielectric host medium, are interesting because of their optical properties linked to surface plasmon resonance phenomena. For studding of nonlinear optical properties and/or energy transfer process, these materials may be excited by ultrashort pulse laser with a temporal width varying from some femtoseconds to some hund...
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تاریخ انتشار 2016