Carrier-carrier interaction in a single InGaAs quantum dot at room temperature investigated by a near-field scanning optical microscope

K. Matsuda, K. Ikeda, Toshiharu Saiki, Hideaki Saito, Kenichi Nishi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Summary form only given. The improvement of the optical quality of semiconductor quantum dots (QDs) grown by Stranski-Krastanow mode is able to realize the QD based optical devices. Owing to the optimization of the growth condition, the performance of QD lasers is improved and becomes to exceed that of quanturn-well lasers. The homogeneous line-width affects the performance of the QD laser such as modulation characteristics and also contains the information on carrier-phonon interaction, carrier-carrier interaction and so on. In the operation of QD laser at room temperature, many carriers injected in and around the QD and the carrier-carrier interaction would lead to the substantial broadening of the linewidth. Employing a high sensitive near-field scanning optical microscope, we performed the single-QD PL spectroscopy at room temperature and discussed the carrier-carrier interaction through the excitation power dependent spectral shift and broadening.

Original languageEnglish
Title of host publicationTechnical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages83-84
Number of pages2
ISBN (Print)155752663X, 9781557526632
DOIs
Publication statusPublished - 2001
Externally publishedYes
EventQuantum Electronics and Laser Science Conference, QELS 2001 - Baltimore, United States
Duration: 2001 May 62001 May 11

Other

OtherQuantum Electronics and Laser Science Conference, QELS 2001
CountryUnited States
CityBaltimore
Period01/5/601/5/11

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Radiation

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    Matsuda, K., Ikeda, K., Saiki, T., Saito, H., & Nishi, K. (2001). Carrier-carrier interaction in a single InGaAs quantum dot at room temperature investigated by a near-field scanning optical microscope. In Technical Digest - Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference, QELS 2001 (pp. 83-84). [961886] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/QELS.2001.961886