Absorption dynamics of type-II GaSb/GaAs quantum dots

K Komolibus, T Piwonski, CJ Reyner, B Liang… - Optical Materials …, 2017 - opg.optica.org
In this paper room temperature pump-probe spectroscopy is employed to study ultrafast
absorption dynamics in type-II GaSb/GaAs quantum dots (QDs). Our results identify a strong …

Complex emission dynamics of type-II GaSb/GaAs quantum dots

K Gradkowski, N Pavarelli, TJ Ochalski… - Applied Physics …, 2009 - pubs.aip.org
Optical properties of the GaSb/GaAs quantum dot system are investigated using a time-
resolved photoluminescence technique. In this type-II heterostructure the carriers of different …

Thermal emission in type-II GaSb/GaAs quantum dots and prospects for intermediate band solar energy conversion

J Hwang, AJ Martin, JM Millunchick… - Journal of Applied …, 2012 - pubs.aip.org
The electronic structure and thermal carrier capture and escape mechanisms are studied for
GaSb/GaAs quantum dots with a type-II band alignment using admittance spectroscopy …

Carrier dynamics in type-II GaSb/GaAs quantum dots

F Hatami, M Grundmann, NN Ledentsov… - Physical Review B, 1998 - APS
The optical properties and dynamics of charge carriers in self-organized arrays of type-II
(staggered band lineup) GaSb/GaAs quantum dots are studied. Interband absorption from …

Gain dynamics and ultrafast spectral hole burning in In (Ga) As self-organized quantum dots

K Kim, J Urayama, TB Norris, J Singh, J Phillips… - Applied physics …, 2002 - pubs.aip.org
Using a femtosecond three-pulse pump-probe technique, we investigated spectral hole-
burning and gain recovery dynamics in self-organized In (Ga) As quantum dots. The spectral …

Unveiling the electronic structure of GaSb/AlGaSb quantum dots emitting in the third telecom window

L Leguay, A Chellu, J Hilska, E Luna… - Materials for …, 2024 - iopscience.iop.org
Epitaxially-grown semiconductor quantum dots (QDs) provide an attractive platform for the
development of deterministic sources of high-quality quantum states of light. Such non …

[HTML][HTML] Photoluminescence properties as a function of growth mechanism for GaSb/GaAs quantum dots grown on Ge substrates

Z Zon, S Thainoi, S Kiravittaya… - Journal of Applied …, 2019 - pubs.aip.org
In this work, we use photoluminescence (PL) spectroscopy to investigate how self-
assembled GaSb/GaAs quantum dots (QDs) depend on their growth mechanism. Carrier …

[PDF][PDF] Radiative recombination in type II GaSb/GaAs quantum dots

H Born, L Müller‐Kirsch, R Heitz, A Hoffmann… - physica status solidi …, 2001 - Citeseer
The type II band alignment of GaSb quantum dots (QDs) in a GaAs matrix leads to peculiar
optical and electronic properties [1–4]. Such type II QDs provide an about twice as large hole …

Optical investigations of the dynamic behavior of GaSb/GaAs quantum dots

CK Sun, G Wang, JE Bowers, B Brar, HR Blank… - Applied physics …, 1996 - pubs.aip.org
Time‐resolved radiative recombination measurements on GaSb quantum dots have been
performed. The GaSb quantum dots are grown by molecular beam epitaxy on (100) GaAs …

Time-resolved amplified spontaneous emission in quantum dots

J Gomis-Bresco, S Dommers-Völkel, O Schöps… - Applied Physics …, 2010 - pubs.aip.org
In time-resolved experiments at InGaAs/GaAs quantum-dots-in-a-well (DWELL)
semiconductor optical amplifiers, pump-probe of the ground state (GS) population, and …