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A joint paper by Mr.Nikolaos Matthaiakakis, the 1st JAIST-UoS Cooperative Research Supervision Program student was published in Scientific Reports.

A joint paper by the 1st JAIST-UoS Cooperative Research Supervision Program student was published in Scientific Reports.

School of Materials Science, JAIST and Faculty of Physical Sciences and Engineering, University of Southampton (UoS), concluded the MOU on the Cooperative Research Supervision Program in September 2013 and have started the Japan⇔UK bilateral exchange of PhD students in their 2nd year in order to conduct collaborative research. A joint paper* led by Mr Nikolaos Matthaiakakis, the 1st program student from UoS visiting Mizuta Lab., Energy and Environment area, JAIST, has just been published online in Scientific Reports on June 9, 2016.

Scientific Reports is an online open access scientific journal published by the Nature Publishing Group (NPG) since 2011 and covers all areas of the natural sciences - biology, chemistry, physics and earth sciences. According to the Journal Citation Reports, the journal's impact factor is 5.578 in 2014.

"Strong modulation of plasmons in Graphene with the use of an Inverted pyramid array diffraction grating"

A graphene-based optical device configuration is proposed and theoretically demonstrated. This new device features a graphene film suspended over 2-dimensional array of inverted rectangular pyramids and allows efficient electrical tuning of surface plasmon wavelength and absorption. Plasmon excitation can be dynamically switched off by lowering the chemical potential and moving from the intra-band to the inter-band transition region. Ability to electrically tune plasmon properties can be utilized in applications such as on-chip light modulation, photonic logic gates, optical interconnect and sensing applications.

The present work is based on theoretical investigation, and we are currently working on the first test device in collaboration with Prof. Murata's Lab. in the Applied Physics Research Division. Experimental demonstration of the operating principle would make a substantial impact on a wide range of photonic devices for communication, computation and sensing applications.

*N. Matthaiakakis, H. Mizuta and M. D. B. Charlton, Scientific Reports 6:27550 DOI: 10.1038/srep27550

mizutalab.jpgMizuta Lab.:Center Mr.Nikolaos Matthaiakakis

June 15,2016