Optical phase transition in semiconductor quantum metamaterials
Physical Review Letters, 2019•APS
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.
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.
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.
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