TITLE

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

AUTHOR(S)
Chang, Hsiang-Szu; Chen, Wen-Yen; Hsu, Tzu-Min; Hsieh, Tung-Po; Chyi, Jen-Inn; Chang, Wen-Hao
PUB. DATE
April 2009
SOURCE
Applied Physics Letters;4/20/2009, Vol. 94 Issue 16, p163111
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
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.
ACCESSION #
38225266

 

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