Society
Dr. Mitsuru Sugisaki
| Organizer: IEEE Electron Devices Society and the Lasers and
Electro-Optics Society |
| Title: Optical Properties of Self-Assembled
InP Quantum Dots |
| Speaker: Dr. Mitsuru Sugisaki |
| Abstract: 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. |
| Biography: 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 or contact Emanuel Istrate (e.istrate@ieee.org) |
The Institute of Electrical and Electronics Engineers,
Toronto Section
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