Thursday, 10 April 2014

Landmark experiment on wave interference from the early 1800s is revisited using gold nanoparticles

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In the eighteenth century, scientists faced a conundrum: is light a wave or a particle? One of strongest pieces of evidence to support the 'wave view'—the landmark double-slit experiment—was reported in 1804 by the scientist Thomas Young. Young passed coherent light through two closely spaced slits and observed a set of interference fringes, a result that occurs with wave phenomena like sound or water. This observation became the basis for the modern wave theory of light.



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