|Organizer: IEEE Electron Devices Society and the Lasers and
|Title: Optical Properties of Self-Assembled
InP Quantum Dots|
Dr. Mitsuru Sugisaki
The last decade has witnessed considerable progress in the fabrication of low-dimensional semiconductor systems from the viewpoint of fundamental physics and opto-electronic device applications. In this talk, the optical properties of self-assembled InP quantum dots investigated by means of macro- and micro-spectroscopy will be discussed. The main results of our findings are as follows;
1. Strong optical anisotropy due to the anisotropic strain from the GaInP matrix.
2. Multi-exciton states.
3. Variation of the thermal activation energy and anomalous temperature dependence of the micro-PL intensity
4. Fluorescence intermittency due to a local electric field generated by a trapped carrier at a local minimum in the matrix. The results indicate that the optical properties of the zero-dimensional system are strongly influenced by the local environment surrounding the quantum dots.
Dr. Sugisaki received his Ph.D. from Okayama University in Japan in 1996. From 1996 to 2000 he worked on the Single Quantum Dot Project, ERATO, JST as a researcher. Since 2000 he has worked at ECAN in the Univesity of Toronto.
|Time and Location: |
Thursday, October 4 at 4:00 p.m.
University of Toronto, Galbraith Building room 120
The Galbraith Building is located at 35 St. George Street.
For more information please visit www.tor.ieee.ca/societies/circuits.htm
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The Institute of Electrical and Electronics Engineers,
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