Negligible pure dephasing in InAs self-assembled quantum dots

Junko Ishi-Hayase; Kouichi Akahane; Naokatsu Yamamoto; Mamiko Kujiraoka; Kazuhiro Ema; Masahide Sasaki

doi:10.1143/JJAP.46.6352

Negligible pure dephasing in InAs self-assembled quantum dots

Junko Ishi-Hayase, Kouichi Akahane, Naokatsu Yamamoto, Mamiko Kujiraoka, Kazuhiro Ema, Masahide Sasaki

研究成果: Article › 査読

4 被引用数 (Scopus)

抄録

We measured the dephasing time and radiative lifetime of excitons in InAs quantum dots fabricated using the strain compensation technique. The dephasing time at 3 K was as long as 2.86ns using transient four-wave mixing measurements at an excitation wavelength of 1.468 μm. This ultralong dephasing time was due to the significant suppression of pure dephasing.

本文言語	English
ページ（範囲）	6352-6354
ページ数	3
ジャーナル	Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
巻	46
号	9 B
DOI	https://doi.org/10.1143/JJAP.46.6352
出版ステータス	Published - 2007 9月 20
外部発表	はい

ASJC Scopus subject areas

工学（全般）
物理学および天文学（全般）

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10.1143/JJAP.46.6352

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AU - Ishi-Hayase, Junko

AU - Akahane, Kouichi

AU - Yamamoto, Naokatsu

AU - Kujiraoka, Mamiko

AU - Ema, Kazuhiro

AU - Sasaki, Masahide

PY - 2007/9/20

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N2 - We measured the dephasing time and radiative lifetime of excitons in InAs quantum dots fabricated using the strain compensation technique. The dephasing time at 3 K was as long as 2.86ns using transient four-wave mixing measurements at an excitation wavelength of 1.468 μm. This ultralong dephasing time was due to the significant suppression of pure dephasing.

AB - We measured the dephasing time and radiative lifetime of excitons in InAs quantum dots fabricated using the strain compensation technique. The dephasing time at 3 K was as long as 2.86ns using transient four-wave mixing measurements at an excitation wavelength of 1.468 μm. This ultralong dephasing time was due to the significant suppression of pure dephasing.

KW - Coherent nonlinear spectroscopy

KW - Dephasing

KW - Exciton-phonon interaction

KW - Quantum dot

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JO - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

JF - Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes

SN - 0021-4922

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Negligible pure dephasing in InAs self-assembled quantum dots

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