Origins of nonzero multiple photon emission probability from single quantum dots embedded in photonic crystal nanocavities

Hsiang Szu Chang*, Wen Yen Chen, Tzu Min Hsu, Tung Po Hsieh, Jen Inn Chyi, Wen-Hao Chang

*Corresponding author for this work

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

This work explores the origins of nonzero multiphoton emission probability for quantum dots embedded in photonic crystal nanocavities using different excitation energies to inject excitons into either the GaAs barrier or the quantum-dot excited state. The detected multiphoton events are established to arise from both the recapture of excitons and background emissions from the wetting layer tail states. The exciton emission is analyzed using rate-equation calculations, which suggest that multiphoton emission is dominated by the recapture effect.

Original languageEnglish
Article number163111
JournalApplied Physics Letters
Volume94
Issue number16
DOIs
StatePublished - 6 May 2009

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