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We report the measurement of macroscopic phase shifts of several degrees for reflected incident light resonant with a bright negatively charged quantum dot (QD) in a micropillar structure of Q-factor less than 200.
We report on cavity quantum electrodynamics effects in high-Q electrically contacted quantum dot-micropillar cavities. The structures show weak coupling and strong coupling via electrooptical tuning as well as single photon emission and low threshold lasing.
We report on electrically driven quantum dot micropillar cavities with quality factors (Q-factors) up to 16.000. A special lateral current injection scheme into small mode volume micropillars is employed which ensures an efficient light outcoupling. The high Q-factors allow the observation of pronounced single dot resonance effects with a Purcell enhancement. These features make the novel electrically...
We report on high quality electrically driven quantum dot micropillar cavities with Q-factors up to 16.000. The high Q-factors allow the observation of pronounced single dot resonance effects with a Purcell enhancement of about 10.
Engineering the interaction of light with matter allows one to tune important properties of solids like e.g. the spontaneous emission rate or the spontaneous emission coupling factor into a laser mode. We have investigated light matter interaction effects in semiconductors using (QD) micropillar cavities and micro disks containing dots with strongly varying oscillator strength and different Q-factors...
High quality semiconductor microcavities have attracted considerable attention as a compact solid state platform for the investigation of light-matter interaction between photons and excitons in single quantum dots. Owing to a combined optimization of the design (increased number of mirror pairs), the growth conditions (V/III ratio) and the dry etching process we were able to achieve record quality...
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