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On the possibility of a terahertz light emitting diode based on a dressed quantum well.

ABSTRACT: We consider theoretically the realization of a tunable terahertz light emitting diode from a quantum well with dressed electrons placed in a highly doped p-n junction. In the considered system the strong resonant dressing field forms dynamic Stark gaps in the valence and conduction bands and the electric field inside the p-n junction makes the QW asymmetric. It is shown that the electrons transiting through the light induced Stark gaps in the conduction band emit photons with energy directly proportional to the dressing field. This scheme is tunable, compact, and shows a fair efficiency.

SUBMITTER: Mandal S

PROVIDER: S-EPMC6841726 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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On the possibility of a terahertz light emitting diode based on a dressed quantum well.

Mandal S S Dini K K Kibis O V OV Liew T C H TCH

Scientific reports 20191108 1

We consider theoretically the realization of a tunable terahertz light emitting diode from a quantum well with dressed electrons placed in a highly doped p-n junction. In the considered system the strong resonant dressing field forms dynamic Stark gaps in the valence and conduction bands and the electric field inside the p-n junction makes the QW asymmetric. It is shown that the electrons transiting through the light induced Stark gaps in the conduction band emit photons with energy directly pro ...[more]

PMID: 31705055

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