Controlling the charge environment of single quantum dots in a photonic-crystal cavity

Details Controlling the charge environment of single quantum dots in a photonic-crystal cavity Controlling the charge environment of single quantum dots in a photonic-crystal cavity

2009-07-20

arxiv.org/abs/0907.3392v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

12 pages, 4 figures

Scientific paper

We demonstrate that the presence of charge around a semiconductor quantum dot (QD) strongly affects its optical properties and produces non-resonant coupling to the modes of a microcavity. We first show that, besides (multi)exciton lines, a QD generates a spectrally broad emission which efficiently couples to cavity modes. Its temporal dynamics shows that it is related to the Coulomb interaction between the QD (multi)excitons and carriers in the adjacent wetting layer. This mechanism can be suppressed by the application of an electric field, making the QD closer to an ideal two-level system.

Affiliated with

Also associated with

No associations

Rating

Controlling the charge environment of single quantum dots in a photonic-crystal cavity does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Controlling the charge environment of single quantum dots in a photonic-crystal cavity, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Controlling the charge environment of single quantum dots in a photonic-crystal cavity will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-696251