Ultralocalized superluminal light pulses |
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| Authors: | P Saari K Reivelt H Valtna |
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| Institution: | (1) Institute of Physics, University of Tartu, Riia 142, Tartu, 51014, Estonia |
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| Abstract: | We consider a sophisticated localized light wave—the so-called focused X wave which possesses a strong exponential localization in its waist region and propagates faster than the speed of light in a vacuum or in a linear medium. We show how this wave—until now considered in the literature as a mathematical object only—could be generated in reality by making use of cylindrical diffraction gratings. |
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