Abstract
Unexpected light propagation effects, such as negative refraction, have been reported in artificial media. Leveraging on the intersubband resonances in heterostructured semiconductors, we show that all possible optical regimes, ranging from classical dieletric and metal to hyperbolic metamaterial types 1 and 2, can be achieved. As a demonstration, we prove that the negative refraction effect can occur at a designed frequency by controlling the electronic quantum confinement.
Highlights
Metamaterials are artificial, human designed materials that feature uncommon physical properties such as an ultrahigh refractive index, extraordinary optical activity, and generalized reflection and refraction [1,2,3,4,5]
We prove that the negative refraction effect can occur at a designed frequency by controlling the electronic quantum confinement
Dubbed a hyperbolic metamaterial (HMM), one of the electric or magnetic resonances is replaced by the material anisotropy
Summary
Metamaterials are artificial, human designed materials that feature uncommon physical properties such as an ultrahigh refractive index, extraordinary optical activity, and generalized reflection and refraction [1,2,3,4,5]. We prove that the negative refraction effect can occur at a designed frequency by controlling the electronic quantum confinement.
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