Abstract
Semiconductor nanocrystals are important systems for the study of three-dimensional quantum confinement.1 Compared to the bulk, enhanced coupling of acoustic phonons to electronic transitions is expected. The study of acoustic phonons is interesting because of the role that such low frequency modes can play in line broadening mechanisms. Low frequency modes can be directly observed in time domain, via resonant impulsive vibrational wavepacket generation, as recently reported for PbS3 and PbTe4 quantum dots. This approach provides information on both phonon frequency and dynamics.
© 1999 Optical Society of America
PDF ArticleMore Like This
Tzu-Ming Liu, Meng-Ju Yang, Chih-Wei Lai, Pi-Tai Chou, Ming-Hao Chang, Hsiang-Lin Liu, and Chi-Kuang Sun
QFN2 Quantum Electronics and Laser Science Conference (CLEO:FS) 2008
Phedon Palinginis and Hailin Wang
QMB3 Quantum Electronics and Laser Science Conference (CLEO:FS) 2001
Vanessa M. Huxter, Shun S. Lo, Anna Lee, and Gregory D. Scholes
LTuI4 Laser Science (LS) 2008