Abstract
The interaction of self-assembled ${\mathrm{In}}_{x}{\mathrm{Ga}}_{1\ensuremath{-}x}\mathrm{As}$ quantum dots with nondegenerate modes of a two-dimensional photonic-crystal defect microcavity has been investigated in the weak-coupling regime. Photoluminescence intensity measurements show a transition from a pump rate limited regime at low excitation to cavity-controlled modes at high excitation. We observe considerably different saturation levels for quantum dots on and off the defect resonance. An enhancement of light emission by a factor of 9 due to the Purcell effect is obtained from this saturation behavior. Using the different temperature shifts of the quantum dot emission lines and the cavity mode, individual dots are tuned in and out of resonance, thus controlling their spontaneous emission rate.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
