OPTICAL NONLINEARITIES OF QUANTUM - CONFINED EXCITONS IN CuBr MICROCRYSTALLITES

1988 ◽  
Vol 49 (C2) ◽  
pp. C2-255-C2-258 ◽  
Author(s):  
U. WOGGON ◽  
F. HENNEBERGER
Keyword(s):  
Optical Nonlinearities ◽  
Quantum Confined

OPTICAL PROPERTIES OF CdTe AND CdS QUANTUM DOTS IN GLASS

1992 ◽  
Vol 01 (01) ◽  
pp. 25-50 ◽  
Author(s):  
V. ESCH ◽  
K. KANG ◽  
B. FLUEGEL ◽  
Y.Z. HU ◽  
G. KHITROVA ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Optical Properties ◽  
Optical Nonlinearities ◽  
Cds Quantum Dots ◽  
Temperature Dependent ◽  
Linear Absorption ◽  
Crystallite Sizes ◽  
Band Mixing ◽  
Quantum Confined ◽  
Coulomb Effects

We summarize the linear and nonlinear optical properties of a variety of CdTe and CdS quantum dots in glass. The measured linear absorption of the CdTe sample is compared with calculations involving valence-band mixing due to the quantum confinement. The temperature dependence of the lowest quantum-confined transition and its linewidth for samples with various crystallite sizes are measured and compared with a simple model. It is found that the shift of the energetically lowest quantum-confined transition as a function of temperature is the same as the temperature-dependent band-gap reduction in bulk materials. Excitation of the sample with pulses ranging from femtoseconds to microseconds allows distinguishing between various mechanisms responsible for the observed optical nonlinearities. At very early times, phase-space filling and Coulomb interaction between the excited charged carriers are responsible for the absorption changes. At later times, Coulomb effects due to “trapped” carriers remain and last for nanoseconds or microseconds.

Optical Nonlinearities of Quantum-Confined Excitons in Semiconductor Microcavities

1997 ◽  
Vol 8 (12) ◽  
pp. 39 ◽  
Author(s):  
F. Jahnke ◽  
M. Kira ◽  
S. W. Koch ◽  
G. Khitrova ◽  
H. M. Gibbs
Keyword(s):  
Optical Nonlinearities ◽  
Semiconductor Microcavities ◽  
Quantum Confined

Optical nonlinearities and two-photon excited time-resolved luminescence in colloidal quantum-confined CuInS2/ZnS heterostructures

RSC Advances ◽  
2014 ◽  
Vol 4 (64) ◽  
pp. 34065 ◽  
Author(s):  
B. Cichy ◽  
D. Wawrzynczyk ◽  
A. Bednarkiewicz ◽  
M. Samoc ◽  
W. Strek
Keyword(s):  
Optical Nonlinearities ◽  
Time Resolved ◽  
Two Photon ◽  
Quantum Confined

Optical Nonlinearities and Femtosecond Dynamics of Quantum Confined CdSe Microcrystallites

1989 ◽  
pp. 191-201 ◽  
Author(s):  
N. Peyghambarian ◽  
S. H. Park ◽  
R. A. Morgan ◽  
B. Fluegel ◽  
Y. Z. Hu ◽  
...  
Keyword(s):  
Optical Nonlinearities ◽  
Femtosecond Dynamics ◽  
Quantum Confined

The quantum confined Pockels effect in GaAs-based multi-quantum wells

1999 ◽  
Vol 09 (PR2) ◽  
pp. Pr2-37 ◽  
Author(s):  
O. Krebs ◽  
P. Voisin ◽  
D. Rondi ◽  
J. L. Gentner ◽  
L. Goldstein ◽  
...  
Keyword(s):  
Quantum Wells ◽  
Pockels Effect ◽  
Quantum Confined

Light-Induced Drift of Quantum-Confined Electrons in Semiconductor Heterostructures

1990 ◽  
Author(s):  
Mark I. Stockman ◽  
Lakshmi N. Pandey ◽  
Thomas F. George
Keyword(s):  
Semiconductor Heterostructures ◽  
Quantum Confined
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