Real-space mapping of exciton and biexciton center-of-mass wave functions in a GaAs quantum dot by near-field optical imaging spectroscopy

K. Matsuda; T. Saiki

Real-space mapping of exciton and biexciton center-of-mass wave functions in a GaAs quantum dot by near-field optical imaging spectroscopy

K. Matsuda, T. Saiki

Research output: Contribution to conference › Paper › peer-review

Abstract

Near-field optical imaging spectroscopy of naturally occurring GaAs quantum dots (QDs) with a lateral size of approximately 100 nm is presented. Due to the enhancement of spatial resolution up to 30 nm, we successfully mapped out center-of-mass wave functions of exciton and biexciton states confined in a single QD. A clear difference in the shape of the wave functions between these states was observed. This technique can be widely applied to the optical manipulation and control of eigenstgates both in single QDs and in coupled QD systems.

Original language	English
Pages	QPD12/1-QPD12/3
Publication status	Published - 2002 Jan 1
Externally published	Yes
Event	Quantum Electronics and Laser Science (QELS) 2002 - Long Beach, CA, United States Duration: 2002 May 19 → 2002 May 24

Other

Other	Quantum Electronics and Laser Science (QELS) 2002
Country	United States
City	Long Beach, CA
Period	02/5/19 → 02/5/24

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "Real-space mapping of exciton and biexciton center-of-mass wave functions in a GaAs quantum dot by near-field optical imaging spectroscopy",

abstract = "Near-field optical imaging spectroscopy of naturally occurring GaAs quantum dots (QDs) with a lateral size of approximately 100 nm is presented. Due to the enhancement of spatial resolution up to 30 nm, we successfully mapped out center-of-mass wave functions of exciton and biexciton states confined in a single QD. A clear difference in the shape of the wave functions between these states was observed. This technique can be widely applied to the optical manipulation and control of eigenstgates both in single QDs and in coupled QD systems.",

author = "K. Matsuda and T. Saiki",

year = "2002",

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language = "English",

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AU - Matsuda, K.

AU - Saiki, T.

PY - 2002/1/1

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N2 - Near-field optical imaging spectroscopy of naturally occurring GaAs quantum dots (QDs) with a lateral size of approximately 100 nm is presented. Due to the enhancement of spatial resolution up to 30 nm, we successfully mapped out center-of-mass wave functions of exciton and biexciton states confined in a single QD. A clear difference in the shape of the wave functions between these states was observed. This technique can be widely applied to the optical manipulation and control of eigenstgates both in single QDs and in coupled QD systems.

AB - Near-field optical imaging spectroscopy of naturally occurring GaAs quantum dots (QDs) with a lateral size of approximately 100 nm is presented. Due to the enhancement of spatial resolution up to 30 nm, we successfully mapped out center-of-mass wave functions of exciton and biexciton states confined in a single QD. A clear difference in the shape of the wave functions between these states was observed. This technique can be widely applied to the optical manipulation and control of eigenstgates both in single QDs and in coupled QD systems.

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Y2 - 19 May 2002 through 24 May 2002

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