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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Matsuda, K., & Saiki, T. (2002). Real-space mapping of exciton and biexciton center-of-mass wave functions in a GaAs quantum dot by near-field optical imaging spectroscopy. QPD12/1-QPD12/3. Paper presented at Quantum Electronics and Laser Science (QELS) 2002, Long Beach, CA, United States.