Slow light in resonant photonic crystals with a complex unit cell |
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Authors: | D R Kazanov A V Poshakinskiy T V Shubina |
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Institution: | 1.Ioffe Institute,Russian Academy of Sciences,St. Petersburg,Russia |
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Abstract: | Features of the propagation and slowing down of short light pulses (duration of ~0.1–2 ps) in one-dimensional resonant photonic crystals with various types of unit cells containing several quantum wells are discussed. It is established that the use of structures with a complex unit cell makes it possible to reduce the group velocity of exciton-polaritons along with the conservation of the width of the transparency window. The calculations show the possibility of the slowing down of a light pulse by a factor of 50 as compared to a pulse propagating in vacuum. The predicted delay time of the pulse is 2 ps at a damping of only 3–5 times. |
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