Fine structure and magneto-optics of exciton, trion, and charged biexciton states in single InAs quantum dots emitting at

NI Cade, H Gotoh, H Kamada, H Nakano… - Physical Review B …, 2006 - APS
We present a detailed investigation into the optical characteristics of individual InAs
quantum dots (QDs) grown by metalorganic chemical vapor deposition, with low …

Strain relaxation in InAs quantum dots through cap** layer variation and its impact on the ultrafast carrier dynamics

A Chatterjee, D Panda, J Patwari… - Semiconductor …, 2019 - iopscience.iop.org
Ultrafast carrier dynamics is found to be crucial for influencing the efficiency of quantum dot
(QD)-based optoelectronic devices. Here, we have studied picosecond resolved dynamics …

Detailed study of the influence of InGaAs matrix on the strain reduction in the InAs dot-in-well structure

P Wang, Q Chen, X Wu, C Cao, S Wang… - Nanoscale research …, 2016 - Springer
InAs/InGaAs dot-in-well (DWELL) structures have been investigated with the systematically
varied InGaAs thickness. Both the strained buffer layer (SBL) below the dot layer and the …

Enhanced thermal stability and emission intensity of InAs quantum dots covered by an InGaAsSb strain-reducing layer

WS Liu, DMT Kuo, JI Chyi, WY Chen, HS Chang… - Applied physics …, 2006 - pubs.aip.org
An InGaAsSb overgrown layer, ie, strain-reducing layer (SRL), is adopted to increase the
emission intensity of InAs quantum dots (QDs) and extend the emission wavelength to as …

Broadband Chirped InAs Quantum-Dot Superluminescent Light-Emitting Diodes With InxAl1-xAs Strain-Reducing Layers

R Yao, N Weir, CS Lee, W Guo - IEEE Photonics Journal, 2016 - ieeexplore.ieee.org
In this paper, broadband InAs quantum-dot (QD) superluminescent light-emitting diodes
(SLEDs) are grown by molecular beam epitaxy, fabricated, and then characterized. In order …

Enhancing optical characteristics of InAs/InGaAsSb quantum dot structures with long-excited state emission at 1.31 μm

WS Liu, HL Tseng, PC Kuo - Optics Express, 2014 - opg.optica.org
In this study, the optical properties of InAs quantum dots (QDs) with various strain-reducing
layers (SRLs) of GaAsSb and InGaAsSb are characterized using photoluminescence (PL) …

Cap** InAs quantum dots with an InGaAsSb strain-reducing layer to improve optical properties and dot-size uniformity

WS Liu, CM Chang - Thin Solid Films, 2014 - Elsevier
The superior operation characteristics of quantum dot (QD) lasers with excited-state (ES)
emission, namely high saturation gain and modulation bandwidth, are advantageous for …

Pinholelike defects in multistack 1.3 μm InAs quantum dot laser

WS Liu, H Chang, YS Liu, JI Chyi - Journal of applied physics, 2006 - pubs.aip.org
The pinholelike defects often observed in multistack InAs quantum dot structures on GaAs
have been investigated comprehensively. Due to the high surface stress of InAs quantum …

Mechanism for improvements of optical properties of 1.3-μm InAs∕ GaAs quantum dots by a combined InAlAs–InGaAs cap layer

HY Liu, CM Tey, IR Sellers, TJ Badcock… - Journal of applied …, 2005 - pubs.aip.org
The optical and structural properties of InAs quantum dots (QDs) with a thin InAlAs–InGaAs
composite cap layer have been systematically investigated by photoluminescence and …

High optical property vertically aligned InAs quantum dot structures with GaAsSb overgrown layers

WS Liu, HM Wu, YA Liao, JI Chyi, WY Chen… - Journal of crystal …, 2011 - Elsevier
This study investigates the feasibility of growing high quality columnar InAs/GaAsSb
quantum dots (QDs) on a GaAs (100) substrate using a molecular beam epitaxial system …