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Controlling the Spontaneous Emission Rate of Quantum Wells in Rolled-Up Hyperbolic Metamaterials

Schulz, K. Marvin ; Vu, Hoan ; Schwaiger, Stephan ; Rottler, Andreas ; Korn, Tobias ; Sonnenberg, David ; Kipp, Tobias ; Mendach, Stefan


We experimentally demonstrate the enhancement of the spontaneous emission rate of GaAs quantum wells embedded in rolled-up metamaterials. We fabricate microtubes whose walls consist of alternating Ag and (In)(Al) GaAs layers with incorporated active GaAs quantum-well structures. By variation of the layer thickness ratio of the Ag and (In)(Al) GaAs layers we control the effective permittivity ...


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