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Photonic crystals come under the microscope Physicists have measured the photonic band structure of aphotonic material for the first time (H Gersen et al. 2005 Phys. Rev. Lett. 94 123901). Laurens Kuipers of the FOM Institute for Atomic and Molecular Physics (AMOLF) and colleagues in the Netherlands, Belgium and Scotland developed a near-field optical microscope that can measure both the amplitude and phase of a light pulse as it travels through a photonic crystal.
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