Influence of exciton-exciton interactions on frequency-mixing signals in a stable exciton-biexciton system

Junko Ishi; Hideyuki Kunugita; Kazuhiro Ema; Takuma Ban; Takashi Kondo

doi:10.1103/PhysRevB.63.073303

Influence of exciton-exciton interactions on frequency-mixing signals in a stable exciton-biexciton system

Junko Ishi, Hideyuki Kunugita, Kazuhiro Ema, Takuma Ban, Takashi Kondo

Research output: Contribution to journal › Article › peer-review

28 Citations (Scopus)

Abstract

Transient nondegenerate four-wave mixing was performed in the femtosecond domain on a stable exciton-biexciton system. For excitation with two spectrally narrow pulses of frequencies ω₁ and ω₂ that have no spectral overlap with each other, only a frequency-mixing signal at 2ω₁−ω₂ was observed. The polarization dependence of the frequency-mixing signal intensity changed dramatically with increasing frequency difference between the incident pulses. Our results demonstrate that the frequency-mixing signal is strongly correlated with the exciton dynamics and the dramatic change of its polarization dependence is caused by the exciton-exciton interactions.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	63
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.63.073303
Publication status	Published - 2001 Jan 22
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.63.073303

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title = "Influence of exciton-exciton interactions on frequency-mixing signals in a stable exciton-biexciton system",

abstract = "Transient nondegenerate four-wave mixing was performed in the femtosecond domain on a stable exciton-biexciton system. For excitation with two spectrally narrow pulses of frequencies ω1 and ω2 that have no spectral overlap with each other, only a frequency-mixing signal at 2ω1−ω2 was observed. The polarization dependence of the frequency-mixing signal intensity changed dramatically with increasing frequency difference between the incident pulses. Our results demonstrate that the frequency-mixing signal is strongly correlated with the exciton dynamics and the dramatic change of its polarization dependence is caused by the exciton-exciton interactions.",

author = "Junko Ishi and Hideyuki Kunugita and Kazuhiro Ema and Takuma Ban and Takashi Kondo",

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T1 - Influence of exciton-exciton interactions on frequency-mixing signals in a stable exciton-biexciton system

AU - Ishi, Junko

AU - Kunugita, Hideyuki

AU - Ema, Kazuhiro

AU - Ban, Takuma

AU - Kondo, Takashi

PY - 2001/1/22

Y1 - 2001/1/22

N2 - Transient nondegenerate four-wave mixing was performed in the femtosecond domain on a stable exciton-biexciton system. For excitation with two spectrally narrow pulses of frequencies ω1 and ω2 that have no spectral overlap with each other, only a frequency-mixing signal at 2ω1−ω2 was observed. The polarization dependence of the frequency-mixing signal intensity changed dramatically with increasing frequency difference between the incident pulses. Our results demonstrate that the frequency-mixing signal is strongly correlated with the exciton dynamics and the dramatic change of its polarization dependence is caused by the exciton-exciton interactions.

AB - Transient nondegenerate four-wave mixing was performed in the femtosecond domain on a stable exciton-biexciton system. For excitation with two spectrally narrow pulses of frequencies ω1 and ω2 that have no spectral overlap with each other, only a frequency-mixing signal at 2ω1−ω2 was observed. The polarization dependence of the frequency-mixing signal intensity changed dramatically with increasing frequency difference between the incident pulses. Our results demonstrate that the frequency-mixing signal is strongly correlated with the exciton dynamics and the dramatic change of its polarization dependence is caused by the exciton-exciton interactions.

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Influence of exciton-exciton interactions on frequency-mixing signals in a stable exciton-biexciton system

Abstract

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