Abstract
The possibility of generating microwave radiation in tunnel-coupled planar waveguides, one of which is made of a metamaterial and is characterized by a negative refractive index in the corresponding frequency range, while the other waveguide is active and exhibits positive refractive index, is demonstrated. The model of a tunable distributed feedback laser, in which the dependence of the refractive index of the metamaterial on the external magnetic field allows controlling the oscillation frequency, is proposed.
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Original Russian Text © I.O. Zolotovskii, D.A. Korobko, D.I. Sementsov, A.A. Fotiadi, 2013, published in Optika i Spektroskopiya, 2013, Vol. 114, No. 2, pp. 331–337.
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Zolotovskii, I.O., Korobko, D.A., Sementsov, D.I. et al. Generation of radiation in tunnel-coupled waveguides with positive and negative refractive indices. Opt. Spectrosc. 114, 299–304 (2013). https://doi.org/10.1134/S0030400X13020318
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DOI: https://doi.org/10.1134/S0030400X13020318