News Column

Studies from National Center for Scientific Research (CNRS) Yield New Data on Physics

June 24, 2014

By a News Reporter-Staff News Editor at Physics Week -- A new study on Physics is now available. According to news originating from Marcoussis, France, by VerticalNews correspondents, research stated, "Two-dimensional lattices of coupled micropillars etched in a planar semiconductor microcavity offer a workbench to engineer the band structure of polaritons. We report experimental studies of honeycomb lattices where the polariton low-energy dispersion is analogous to that of electrons in graphene."

Our news journalists obtained a quote from the research from National Center for Scientific Research (CNRS), "Using energy-resolved photoluminescence, we directly observe Dirac cones, around which the dynamics of polaritons is described by the Dirac equation for massless particles. At higher energies, we observe p orbital bands, one of them with the nondispersive character of a flatband."

According to the news editors, the research concluded: "The realization of this structure which holds massless, massive, and infinitely massive particles opens the route towards studies of the interplay of dispersion, interactions, and frustration in a novel and controlled environment."

For more information on this research see: Direct observation of Dirac cones and a flatband in a honeycomb lattice for polaritons. Physical Review Letters, 2014;112(11):116402. (American Physical Society -; Physical Review Letters -

The news correspondents report that additional information may be obtained from T. Jacqmin, Laboratoire de Photonique et Nanostructures, CNRS, LPN, Route de Nozay, 91460 Marcoussis, France. Additional authors for this research include I. Carusotto, I. Sagnes, M. Abbarchi, D.D. Solnyshkov, G. Malpuech, E. Galopin, A. Lemaitre, J. Bloch and A. Amo.

Keywords for this news article include: France, Europe, Physics, Marcoussis.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC

For more stories covering the world of technology, please see HispanicBusiness' Tech Channel

Source: Physics Week

Story Tools Facebook Linkedin Twitter RSS Feed Email Alerts & Newsletters