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pro vyhledávání: '"Yu, Kin Wah"'
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Strategy for designing broadband epsilon-near-zero metamaterial with loss compensation by gain media
Autor:
Sun, Lei, Yu, Kin Wah
Publikováno v:
Appl. Phys. Lett. 100, 261903 (2012)
A strategy is proposed to design the broadband gain-doped epsilon-near-zero (GENZ) metamaterial. Based on the Milton representation of effective permittivity, the strategy starts in a dimensionless spectral space, where the effective permittivity of
Externí odkaz:
http://arxiv.org/abs/1206.1683
We verify the feasibility of the proposed theoretical strategy for designing the broadband near-zero permittivity (ENZ) metamaterial at optical frequency range with numerical simulations. In addition, the designed broadband ENZ stack are used as meta
Externí odkaz:
http://arxiv.org/abs/1205.5218
Publikováno v:
J. Opt. Soc. Am. B 28, 1339 (2011)
We have studied the propagation and Zener tunneling of light in the binary parabolic optical waveguide array (BPOWA), which consists of two evanescently coupled dissimilar optical waveguides. Due to Bragg reflections, BPOWA attains two minibands sepa
Externí odkaz:
http://arxiv.org/abs/1102.5591
Publikováno v:
J. Opt. 13, 035708 (2011)
We have studied harmonic oscillations in an elliptical optical waveguide array in which the coupling between neighboring waveguides is varied in accord with a Kac matrix so that the propagation constant eigenvalues can take equally spaced values. As
Externí odkaz:
http://arxiv.org/abs/1102.0351
Publikováno v:
Optics Letters, Vol. 35, 3865 (2010)
We have studied the optical oscillation and tunneling of light waves in optical waveguide ladders formed by two coupled planar optical waveguide arrays. For the band structure, a mid-zone gap is formed due to band hybridization and its wavenumber pos
Externí odkaz:
http://arxiv.org/abs/1010.1884
Publikováno v:
J. Opt. Soc. Am. B 27, 1299 (2010)
We study the optical oscillations of supermodes in planar optical waveguide arrays with parabolically graded propagation constant in individual waveguide interacting through nearest neighbor couplings. In these arrays, we have identified a transition
Externí odkaz:
http://arxiv.org/abs/1004.3633
Publikováno v:
Optics Letters, Vol. 33, 2200 (2008)
We exploit theoretically the occurrence and tunability of photonic Bloch oscillations (PBOs) in one-dimensional photonic crystals (PCs) containing nonlinear composites. Because of the enhanced third-order nonlinearity (Kerr type nonlinearity) of comp
Externí odkaz:
http://arxiv.org/abs/0810.3049
Akademický článek
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