News Column

Recent Findings from IMEC Provides New Insights into General Science

June 6, 2014

By a News Reporter-Staff News Editor at Science Letter -- Current study results on Science have been published. According to news reporting out of Louvain, Belgium, by NewsRx editors, research stated, "Optical antennas transform light from freely propagating waves into highly localized excitations that interact strongly with matter. Unlike their radio frequency counterparts, optical antennas are nanoscopic and high frequency, making amplitude and phase measurements challenging and leaving some information hidden."

Our news journalists obtained a quote from the research from IMEC, "Here we report a novel spectral interferometric microscopy technique to expose the amplitude and phase response of individual optical antennas across an octave of the visible to near-infrared spectrum. Although it is a far-field technique, we show that knowledge of the extinction phase allows quantitative estimation of nanoantenna absorption, which is a near-field quantity. To verify our method we characterize gold ring-disk dimers exhibiting Fano interference. Our results reveal that Fano interference only cancels a bright mode's scattering, leaving residual extinction dominated by absorption."

According to the news editors, the research concluded: "Spectral interference microscopy has the potential for real-time and single-shot phase and amplitude investigations of isolated quantum and classical antennas with applications across the physical and life sciences."

For more information on this research see: Spectral interferometric microscopy reveals absorption by individual optical nanoantennas from extinction phase. Nature Communications, 2014;5():1-8. Nature Communications can be contacted at: Nature Publishing Group, Macmillan Building, 4 Crinan St, London N1 9XW, England. (Nature Publishing Group -; Nature Communications -

Our news journalists report that additional information may be obtained by contacting S.D. Gennaro, IMEC, B-3001 Louvain, Belgium. Additional authors for this research include Y. Sonnefraud, N. Verellen, P. Van Dorpe, V.V. Moshchalkov, S.A. Maier and R.F. Oulton (see also Science).

Keywords for this news article include: Europe, Louvain, Belgium, Science

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Source: Science Letter

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