News tagged with refractive index

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Bending light the 'wrong' way

(PhysOrg.com) -- Scientists have tried this with sophisticated meta-materials, but at the Vienna University of Technology (TU Vienna) it has now been done with simple metals; materials with a negative refractive ...

Aug 18, 2011
4.4 / 5 (7) 9 | with audio podcast

Scientists reverse Doppler Effect

(PhysOrg.com) -- Researchers from Swinburne University and the University of Shanghai for Science and Technology have for the first time ever demonstrated a reversal of the optical ‘Doppler Effect’ ...

Mar 07, 2011
4.6 / 5 (15) 1 | with audio podcast

Imitation black hole seen on earth

Astrophysics deals mostly with things that are so distant -- thousands or billions of light years away -- that we can't ever hope to see them up close. But clever scientists can do the next best thing to making ...

Sep 30, 2010
4.3 / 5 (10) 5