Quantum-confined Stark effects in coupled InAs/GaAs quantum dots

2013 ◽  
Vol 102 (21) ◽  
pp. 213101 ◽  
Author(s):  
Swati Ramanathan ◽  
Greg Petersen ◽  
Kushal Wijesundara ◽  
Ramana Thota ◽  
E. A. Stinaff ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Stark Effects ◽  
Quantum Confined

Quantum-confined Stark effects in semiconductor quantum dots

1995 ◽  
Vol 52 (8) ◽  
pp. 5913-5922 ◽  
Author(s):  
G. W. Wen ◽  
J. Y. Lin ◽  
H. X. Jiang ◽  
Z. Chen
Keyword(s):  
Quantum Dots ◽  
Semiconductor Quantum Dots ◽  
Stark Effects ◽  
Quantum Confined

Quantum-confined Stark Effects of Strained CdTe/ZnTe Pyramidal Quantum Dots

2011 ◽  
Vol 59 (4) ◽  
pp. 2817-2820
Author(s):  
Seoung-Hwan Park ◽  
Woo-Pyo Hong ◽  
Jong-Jae Kim
Keyword(s):  
Quantum Dots ◽  
Stark Effects ◽  
Quantum Confined

Quantum-confined Stark effects in interdiffused semiconductor quantum dots

2007 ◽  
Author(s):  
Yang Wang ◽  
David Negro ◽  
Hery S. Djie ◽  
Boon S. Ooi
Keyword(s):  
Quantum Dots ◽  
Semiconductor Quantum Dots ◽  
Stark Effects ◽  
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.

Sign in / Sign up

Export Citation Format

Share Document