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Theoretical studies on the group velocity of light wave in 1-D polystyrene/SiO₂nonlinear photonic crystal is investigated. The speed of light wave through these multilayered structures is calculated in the absence as well as in the presence of a high intensity controlling wave by using the transfer matrix method. This letter shows that we can trap a light wave inside the nonlinear 1-D photonic crystal by switching off the controlling wave.
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Kumar et al. (2013) studied this question.
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