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COUNTER-PROPAGATING ENERGY-FLOWS IN NONLINEAR LEFT-HANDED METAMATERIALS

By L. Chen, W. Ding, X.-J. Dang, and C.-H. Liang

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Abstract:
A peculiarity of counter-propagating energy-flows in nonlinear left-handed metamaterials (LHMs) is investigated for the case when the frequency of fundamental wave is in the negativeindex range and second-harmonic wave is in the positive-index range. Based on the electromagnetic theory,the comparisons of Manly-Rowe relations for nonlinear materials and process of secondharmonic generation under phase-matching condition in LHMs and RHMs are shown separately. That a surface of nonlinear left-handed metamaterials operates as an effective mirror which reflects the energy in form of second harmonics is demonstrated. Numerical results of fundamental and second-harmonic field intensity distributions are in agreement with theoretical results.

Citation: (See works that cites this article)
L. Chen, W. Ding, X.-J. Dang, and C.-H. Liang, "Counter-propagating energy-flows in nonlinear left-handed metamaterials," Progress In Electromagnetics Research, Vol. 70, 257-267, 2007.
doi:10.2528/PIER07012502
http://www.jpier.org/pier/pier.php?paper=07012502

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