News tagged with refraction

Absorbing acoustics with soundless spirals

Researchers at the French National Centre for Scientific Research, CNRS, and the University of Lorraine have recently developed a design for a coiled-up acoustic metasurface which can achieve total acoustic absorption in ...

dateFeb 09, 2016 in General Physics
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Bending light the 'wrong' way

( -- 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 index bend ...

dateAug 18, 2011 in General Physics
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Scientists reverse Doppler Effect

( -- 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’ – an advance ...

dateMar 07, 2011 in Optics & Photonics
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