47 research outputs found
Quantum Rod Emission Coupled to Plasmonic Lattice Resonances: A Collective Directional Source of Polarized Light
We demonstrate that an array of optical antennas may render a thin layer of
randomly oriented semiconductor nanocrystals into an enhanced and highly
directional source of polarized light. The array sustains collective plasmonic
lattice resonances which are in spectral overlap with the emission of the
nanocrystals over narrow angular regions. Consequently, different photon
energies of visible light are enhanced and beamed into definite directions.Comment: 4 pages, 3 figure
Characterizing the Epidemiology of the 2009 Influenza A/H1N1 Pandemic in Mexico
Gerardo Chowell and colleagues address whether school closures and other social
distancing strategies were successful in reducing pandemic flu transmission in
Mexico by analyzing the age- and state-specific incidence of influenza morbidity
and mortality in 32 Mexican states