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|Title:||Large positive and negative lateral shifts near pseudo-Brewster dip on reflection from a chiral metamaterial slab|
|Citation:||Huang, Y.Y., Dong, W.T., Gao, L., Qiu, C.W. (2011-01-17). Large positive and negative lateral shifts near pseudo-Brewster dip on reflection from a chiral metamaterial slab. Optics Express 19 (2) : 1310-1323. ScholarBank@NUS Repository. https://doi.org/10.1364/OE.19.001310|
|Abstract:||The lateral shifts from a slab of lossy chiral metamaterial are predicted for both perpendicular and parallel components of the reflected field, when the transverse electric (TE)-polarized incident wave is applied. By introducing different chirality parameter, the lateral shifts can be large positive or negative near the pseudo-Brewster angle. It is found that the lateral shifts from the negative chiral slab are affected by the angle of incidence and the chirality parameter. In the presence of inevitable loss of the chiral slab, the enhanced lateral shifts will be decreased, and the pseudo- Brewster angle will disappear correspondingly. For the negative chiral slab with loss which is invisible for the right circularly polarized (RCP) wave, we find that the loss of the chiral slab will lead to the fluctuation of the lateral shift with respect to the thickness of the chiral slab.The validity of the stationary-phase analysis is demonstrated by numerical simulations of a Gaussian-shaped beam. © 2011 Optical Society of America.|
|Source Title:||Optics Express|
|Appears in Collections:||Staff Publications|
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