Figure 1

The extraordinary (TM) and ordinary (TE) waves propagating in a planar waveguide with an anisotropic core.Reuse & Permissions

Figure 2

(Color) Reflection and refraction at the boundary between right- (RHM) and left-handed media (LHM). (a) Schematic illustration of refraction of a TM wave at the RHM- LHM interface (ordinary wave not shown). (b) (top) The results of the exact numerical calculations of refraction of the mode in planar waveguide with perfectly conducting walls; $\varkappa =k∕2$; RHM parameters $(z<0)$: $ϵ=\nu =1∕2+0.002i$; LHM $(z>0)$: $ϵ=\nu =-1∕2+0.003i$, angle of incidence: $\pi ∕10$, normalized real part of $E_x$ shown. (bottom): the same as (top), but with a finite-conductive waveguide (silver; $\lambda =0.75\mathrm{\mu }\mathrm{m};{ϵ}_w=-25+0.3i$). The red, green, and blue arrows show the direction of incident, reflected, and refracted waves correspondingly. (c) The intensity profile of $E_z$ for the systems in (b); (blue) and (red) correspond to perfect metal (top) and silver (bottom) waveguide walls.Reuse & Permissions

Figure 3

(Color) Amplification of an evanescent field by a parallel slab of planar LHM $(\varkappa =k∕2)$. The blue line corresponds to nonplasmonic case. The right-hand media (RHM) parameters: ${ϵ}^{\left(RHM\right)}={\nu }^{\left(RHM\right)}=1∕2$, LHM parameters: ${ϵ}^{\left(LHM\right)}={\nu }^{\left(LHM\right)}=-1∕2;$ $k_y=2k$. The red line shows the case of resonant excitation of polariton waves ${ϵ}^{\left(RHM\right)}=3∕2,$ ${\nu }^{\left(RHM\right)}=4;$ ${ϵ}^{\left(LHM\right)}=-6∕5,$ ${\nu }^{\left(LHM\right)}=-5;$ $k_y=\sqrt{9∕8}k$; the LHM is positioned between $z=0$ and $z=10\lambda$. The resonant enhancement of evanescent components with surface waves (often attributed to superlens, originally proposed in Ref. 2) is clearly seen.Reuse & Permissions