asteroza + plasmon   25

OSA | Study of W/HfO2 grating selective thermal emitters for thermophotovoltaic applications
Interesting, tungsten with a hafnium oxide grating over it has highly selective IR emittance, making it well matched for gallium based TPV cells
tungsten  emitter  hafnium  oxide  transverse  magnetic  polarization  surface  plasmon  shaping  IR  TPV  cell  matching  power  generator  materials  science  research  technology 
9 weeks ago by asteroza
Plasmonic p–n Junction for Infrared Light to Chemical Energy Conversion - Journal of the American Chemical Society (ACS Publications)
Making hydrogen gas with IR light. Though one wonders where direct conversion with this photocatalyst is better than using a frequency converter intermediary and a different photocatlyst...
japa  hydrogen  production  materials  science  research  technology  IR  cadmium  copper  sulfide  photocatalyst  heterostructure  nanocrystal  surface  plasmon  solar  fuel 
march 2019 by asteroza
Efficient plasmonic emission by the quantum Cerenkov effect from hot carriers in...
Using electric driven "optic booms" to make light from electricity via plasmons. Sorta like constructive interference from sonic booms.
graphene  optics  physics  materials  science  research  technology  electric  optical  boom  light  plasmon  Delicious 
june 2016 by asteroza
From tunable core-shell nanoparticles to plasmonic drawbridges: Active control o...
Electric voltage induced color changes in silver nanoparticle infused glass, effectively making active stained glass.
silver  nanoparticle  plasmon  tuning  optics  materials  science  research  technology  active  color  change  glass  reversible  switching  Delicious 
june 2016 by asteroza
Enhanced photovoltaics inspired by the fovea centralis : Scientific Reports : Nature Publishing Group
Interesting nanostructure research to improve solar cell efficiency by improving light capture. The takeaway is that straight right cylinder nanowires actually perform worse than nanowires with uneven shapes, one extreme being a nanofunnel (wouldn't this be more like a cone or frustrum though?)
silicon  nanofunnel  microfunnel  funnel  structure  nanostructure  surface  plasmon  light  trap  solar  cell  materials  science  physics  research  technology  nanotechnology  nanowire  Delicious 
february 2015 by asteroza
Synthesized material enables plasmonic devices in mid-infrared range
New material found that does surface plasmon resonance in the mid-IR range, which previously was unavailable (usually metals in UV or semiconductors in far-IR, but nothing in between)
cadmiun  oxide  dysprosium  doping  mid  IR  surface  plasmon  resonance  oscillator  materials  science  research  technology  Delicious 
february 2015 by asteroza
Point of Light | Caltech
By proxy, exceeding the diffraction limit of visible wavelength light using surface plasmon polaritons on a nanoscale silicon dioxide waveguide.
optics  nanotechnology  technology  research  science  materials  physics  dioxide  silicon  waveguide  focus  limit  diffraction  light  visible  polariton  plasmon  surface  SPP  Delicious 
december 2012 by asteroza

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