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1.
Focus

Giving Light a Spin

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Phys. Rev. Focus 27, 4 (2011) – Published January 28, 2011
Researchers have designed the first emitter of circularly polarized light made from a stand-alone semiconductor device.
2.
Focus

Left-Handed Materials Debate Heats Up

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Phys. Rev. Focus 9, 23 (2002) – Published May 3, 2002
Researchers challenge the idea that special materials can bend light the ‘wrong’ way and create the perfect lens.