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Surfaces and interfaces

Surfaces and interfaces

Putting a new spin on photons

21 Mar 2013 Tushna Commissariat
SEM of the metasurface with the V-shaped antenna (left) and a diagram showing the light focused on the surface
A scanning electron microscope (SEM) image of a metasurface with the V-shaped antenna is seen on the left. On the right is a diagram showing how the light from a broadband source was focused onto the metasurface with a lens. The polarization can be adjusted in both the x and y directions with a half-wave plate. (Courtesy: Xiang Zhang, University of California, Berkeley)
The best measurement yet of the photonic spin Hall effect (SHE) has been made by researchers in the

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Tushna Commissariat is the features editor of Physics World
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