TITLE

Stark-tunable electroluminescence from cavity polariton states

AUTHOR(S)
Todorov, Y.; Jouy, P.; Vasanelli, A.; Sapienza, L.; Colombelli, R.; Gennser, U.; Sirtori, C.
PUB. DATE
October 2008
SOURCE
Applied Physics Letters;10/27/2008, Vol. 93 Issue 17, p171105
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Electric-field tunable electroluminescence from intersubband transitions in a quantum well has been demonstrated via the strong coupling of the electronic transitions with an optical cavity mode. The device consists of a quantum cascade structure embedded in a planar metal-dielectric microcavity where electrons can be resonantly injected at different energies, thanks to the polariton dispersion curve. The electroluminescence tuning shows a strong far field angular dependence in accordance with the conservation of the in-plane momentum. Our experiment illustrates that it is possible to connect quantum optics and electronic transport in semiconductor heterostructures.
ACCESSION #
35279128

 

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