Abstract
CdS and CdSe microcrystallites embedded in silicate glasses are interesting materials for studying 3-D quantum confinement effects. A comprehensive study of optical nonlinearities of a number of CdSe quantum dot samples, using nanosecond and femtosecond laser techniques, is reported. The homogeneous and inhomogeneous contributions to the lowest electronic transitions have been measured using hole-burning. Analysis of the hole width, which increases with increasing light intensity, gives the polarization decay time. Femtosecond four-wave mixing measurements have been performed to obtain the energy relaxation time. The excited state dynamics and optical nonlinearities as a function of microcrystallite size have been investigated.
Original language | English (US) |
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Pages | 150, 152 |
State | Published - 1989 |
Event | Quantum Electronics and Laser Science Conference - Baltimore, MD, USA Duration: Apr 24 1989 → Apr 28 1989 |
Other
Other | Quantum Electronics and Laser Science Conference |
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City | Baltimore, MD, USA |
Period | 4/24/89 → 4/28/89 |
ASJC Scopus subject areas
- General Engineering