Resonant tunneling of quantum dot in a microcavity

Details Resonant tunneling of quantum dot in a microcavity Resonant tunneling of quantum dot in a microcavity

2002-04-09

arxiv.org/abs/cond-mat/0204188v2

Phys. Rev. B. 66, 165316 (2002)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4pages, 4 figures

Scientific paper

10.1103/PhysRevB.66.165316

We propose to measure Purcell effect by observing the current through a semeiconductor quantum dot embedded in a microcavity. An electron and a hole are injected separately into the quantum structure to form an exciton and then recombine radiatively. The stationary current is shown to be altered if one varies the cavity length or the exciton energy gap. Therefore, the Purcell effect can be observed experimentally by measuring the current through the quantum structure. In addition, we also find superradiance of excitons between quantum dots may also be observed in an electrical way.

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