Characterization of strong light-matter coupling in semiconductor quantum-dot microcavities via photon-statistics spectroscopy
L. Schneebeli, M. Kira, S.W. Koch
TL;DR
This paper demonstrates that photon-statistics spectroscopy can effectively identify strong light-matter coupling states in semiconductor quantum-dot microcavities, revealing prominent second-rung resonances with high contrast.
Contribution
It introduces a microscopic theory to analyze photon-statistics spectra, optimizing excitation conditions to detect two-photon strong-coupling states in quantum-dot systems.
Findings
Gigantic resonances at second-rung emission energies
High contrast identification of strong-coupling states
Robustness of photon-statistics signals in experiments
Abstract
It is shown that spectrally resolved photon-statistics measurements of the resonance fluorescence from realistic semiconductor quantum-dot systems allow for high contrast identification of the two-photon strong-coupling states. Using a microscopic theory, the second-rung resonance is analyzed and optimum excitation conditions are determined. The computed photon-statistics spectrum displays gigantic, experimentally robust resonances at the energetic positions of the second-rung emission.
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