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    Optical solitons in negative-index meta-materials

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    Date
    2013
    Publisher
    © 2013 IEEE
    Author
    U. A., Mofiz
    Metadata
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    URI
    http://hdl.handle.net/10361/7132
    Citation
    Mofiz, U. A. (2013). Optical solitons in negative-index meta-materials. Paper presented at the Proceedings of 2013 2nd International Conference on Advances in Electrical Engineering, ICAEE 2013, 37-42. doi:10.1109/ICAEE.2013.6750301
    Abstract
    The nonlinear propagation of gigahertz electromagnetic wave propagation in the resonant region of a negative index meta-material is investigated. It is found that the negative refractive index is maintained within a narrow band of frequency which is more narrowed down with the intensity of the radiation. In the high frequency response, the nonlinear field dependent dispersion relation is obtained, and the corresponding group velocity is determined. In the low frequency response, coupled nonlinear Schrödinger equations are obtained which show the creation of bright and dark optical solitons. The bright soliton is a fast mode and it is modulationally unstable. The dark soliton is a slow mode and it is modulationally stable. Applications of these results to terahertz spectrums and in the photonic crystals are mentioned.
    Keywords
    Optical solitons; Optoelectronics; Meta-material; Negative refractive index
     
    Description
    This conference paper was presented in the 2nd International Conference on Advances in Electrical Engineering, ICAEE 2013; Dhaka; Bangladesh; 19 December 2013 through 21 December 2013 [© 2013 IEEE]. The conference paper's definite version is available at: http:doi.org/10.1109/ICAEE.2013.6750301
    DOI
    http://dx.doi.org/10.1109/ICAEE.2013.6750301
    Department
    Department of Mathematics and Natural Sciences, BRAC University
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