Quantum dot spectroscopy using cavity QED

Abstract

Cavity quantum electrodynamics has attracted substantial interest, both due to its potential role in the field of quantum information processing and as a testbed for basic experiments in quantum mechanics. Here, we show how cavity quantum electrodynamics using a tunable photonic crystal nanocavity in the strong coupling regime can be used for single quantum dot spectroscopy. From the distinctive avoided crossings observed in the strongly coupled system we can identify the neutral and single positively charged exciton as well as the biexciton transitions. Moreover we are able to investigate the fine structure of those transitions and to identify a novel cavity mediated mixing of bright and dark exciton states, where the hyperfine interactions with lattice nuclei presumably play a key role. These results are enabled by a deterministic coupling scheme which allowed us to achieve unprecedented coupling strengths in excess of 0.15 meV.

5 pages, 3 figures

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• Quantum nature of a strongly-coupled single quantum dot-cavity system
• Linear and nonlinear optical spectroscopy of a strongly-coupled microdisk-quantum dot system
• Magnetic-field-induced reduction of the exciton polarization splitting in InAs quantum dots
• Optical fiber taper coupling and high-resolution wavelength tuning of microdisk resonators at cryogenic temperatures
• Frequency control of photonic crystal membrane resonators by mono-layer deposition

Cited by in corpus (27)

• Resolution of the mystery of counter-intuitive photon correlations in far off-resonance emission from a quantum dot-cavity system
• Spontaneous two photon emission from a single quantum dot
• Dephasing of quantum dot exciton polaritons in electrically tunable nanocavities
• Cavity quantum electrodynamics with semiconductor quantum dots: The role of phonon-assisted cavity feeding
• Exciton-Photonics: From Fundamental Science to Applications
• Two-photon lasing by a single quantum dot in a high-Q microcavity
• Exciton spin-flip rate in quantum dots determined by a modified local density of optical states
• Two-Photon Rabi Splitting in a Coupled System of a Nanocavity and Exciton Complexes
• Scalable qubit architecture based on holes in quantum dot molecules
• Cavity quantum electrodynamics with charge-controlled quantum dots coupled to a fiber Fabry-Perot cavity
• III-V quantum light source and cavity-QED on Silicon
• Quantum Electrodynamics of a Nanocavity Coupled with Exciton Complexes in a Quantum Dot
• Brightening of dark excitons in a single quantum dot containing a single magnetic ion
• Surface-passivated high-Q GaAs photonic crystal nanocavity with quantum dots
• Investigation of the spectral triplet in strongly coupled quantum dot-nanocavity system
• Cavity versus dot emission in strongly coupled quantum dots-cavity systems
• Dynamical bistability in the driven circuit QED
• Quasienergy description of the driven Jaynes-Cummings model
• Combined atomic force microscopy and photoluminescence imaging to select single InAs/GaAs quantum dots for quantum photonic devices
• Entangled photons from a strongly coupled quantum dot-cavity system
• Time-resolved vacuum Rabi oscillations in a quantum dot-nanocavity system
• Explanation of the intriguing quantum phenomenon of the off-resonant cavity mode emission
• Reflectance measurement of two-dimensional photonic crystal nanocavities with embedded quantum dots
• Strong coupling between a single quantum dot and an L4/3 photonic crystal nanocavity
• Light emission properties in a double quantum dot molecule immersed in a cavity: phonon-assisted tunneling
• High fidelity state mapping performed in a V-type level structure via stimulated Raman transition
• Hidden Vacuum Rabi oscillations: Dynamical Quantum Superpositions of On/Off Interaction between a Single Quantum Dot and a Microcavity