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Findings in the Area of Nanostructures Reported from University of California (Ultrafast acousto-plasmonic control and sensing in complex...

August 15, 2014

Findings in the Area of Nanostructures Reported from University of California (Ultrafast acousto-plasmonic control and sensing in complex nanostructures)

By a News Reporter-Staff News Editor at Science Letter -- New research on Nanostructures is the subject of a report. According to news reporting originating from Berkeley, California, by NewsRx correspondents, research stated, "Coherent acoustic phonons modulate optical, electronic and mechanical properties at ultrahigh frequencies and can be exploited for applications such as ultratrace chemical detection, ultrafast lasers and transducers. Owing to their large absorption cross-sections and high sensitivities, nanoplasmonic resonators are used to generate coherent phonons up to terahertz frequencies."

Our news editors obtained a quote from the research from the University of California, "Generating, detecting and controlling such ultrahigh frequency phonons has been a topic of intense research. Here we report that by designing plasmonic nanostructures exhibiting multimodal phonon interference, we can detect the spatial properties of complex phonon modes below the optical wavelength through the interplay between plasmons and phonons. This allows detection of complex nanomechanical dynamics by polarization-resolved transient absorption spectroscopy. Moreover, we demonstrate that the multiple vibrational states in nanostructures can be tailored by manipulating the geometry and dynamically selected by acousto-plasmonic coherent control."

According to the news editors, the research concluded: "This allows enhancement, detection and coherent generation of tunable strains using surface plasmons."

For more information on this research see: Ultrafast acousto-plasmonic control and sensing in complex nanostructures. Nature Communications, 2014;5():31-36. Nature Communications can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group -; Nature Communications -

The news editors report that additional information may be obtained by contacting K. O'Brien, University of California, Lawrence Berkeley Natl Lab, Div Mat Sci, Berkeley, CA 94720, United States. Additional authors for this research include N.D. Lanzillotti-Kimura, J. Rho, H. Suchowski, X.B. Yin and X. Zhang (see also Nanostructures).

Keywords for this news article include: Berkeley, California, United States, Nanostructural, Nanostructures, Nanotechnology, Emerging Technologies, North and Central America

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Source: Science Letter

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