scholarly journals On the Optical Stark Effect of Excitons in InGaAs Prolate Ellipsoidal Quantum Dots

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Le Thi Ngoc Bao ◽  
Duong Dinh Phuoc ◽  
Le Thi Dieu Hien ◽  
Dinh Nhu Thao
Keyword(s):  
Quantum Dots ◽  
Stark Effect ◽  
Geometric Shape ◽  
Quantum Structures ◽  
Field Energy ◽  
Exciton Absorption ◽  
Optical Stark Effect ◽  
Prolate Ellipsoidal ◽  
Quantized Levels

In this paper, we study the exciton absorption spectra in InGaAs prolate ellipsoidal quantum dots when a strong pump laser resonant with electron quantized levels is active. Our obtained results by renormalized wavefunction theory show that, under suitable conditions, the initial exciton absorption peak is split into two new peaks as the evidence of the existence of the three-level optical Stark effect of excitons. We have suggested an explanation of the origin of the effect as well as investigating the effect of pump field energy, size, and geometric shape of the quantum dots on effect characteristics. The comparison with the results obtained in the spherical quantum dots implies the important role of geometric shape of the quantum structures when we examine this effect.

scholarly journals Creating excitonic entanglement in quantum dots through the optical Stark effect

2004 ◽  
Vol 70 (5) ◽  
Author(s):  
Ahsan Nazir ◽  
Brendon W. Lovett ◽  
G. Andrew D. Briggs
Keyword(s):  
Quantum Dots ◽  
Stark Effect ◽  
Optical Stark Effect

A theoretical study of the optical Stark effect in InGaAs/InAlAs quantum dots

2017 ◽  
Vol 32 (2) ◽  
pp. 025014 ◽  
Author(s):  
Dinh Nhu Thao ◽  
Le Thi Ngoc Bao ◽  
Duong Dinh Phuoc ◽  
Nguyen Hong Quang
Keyword(s):  
Quantum Dots ◽  
Stark Effect ◽  
Theoretical Study ◽  
Optical Stark Effect

Room-Temperature Anomalous Coherent Excitonic Optical Stark Effect in Metal Halide Perovskite Quantum Dots

Nano Letters ◽  
2022 ◽  
Author(s):  
Megha Shrivastava ◽  
Franziska Krieg ◽  
Dipendranath Mandal ◽  
Ajay K. Poonia ◽  
Santu K. Bera ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Room Temperature ◽  
Stark Effect ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Perovskite Quantum Dots ◽  
Optical Stark Effect ◽  
Halide Perovskite

scholarly journals Three-Level Optical Stark Effect of Excitons in GaAs Cylindrical Quantum Wires

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Dinh Nhu Thao ◽  
Duong Dinh Phuoc ◽  
Le Thi Ngoc Bao ◽  
Le Thi Dieu Hien ◽  
Tran Phan Thuy Linh ◽  
...  
Keyword(s):  
Stark Effect ◽  
Quantum Wires ◽  
Function Theory ◽  
Pump Laser ◽  
Strong Impact ◽  
Wire Radius ◽  
Exciton Absorption ◽  
Hole Level ◽  
Level Model ◽  
Optical Stark Effect

This study looks at the three-level optical Stark effect of excitons in GaAs cylindrical quantum wires, utilizing the renormalized wave function theory. By applying the three-level model consisting of the first two electron levels connected via a powerful pump laser and the first hole level, we observe the appearance of the excitonic optical Stark effect through the appearance of two separated peaks in the exciton absorption spectra. In addition, the strong impact of the pump laser detuning and the wire radius on the optical Stark effect are also put under thorough examination. Finally, a brief guidance for experimental verification is also suggested.

Strong Spin-Selective Optical Stark Effect in Lead Halide Perovskite Quantum Dots

2020 ◽  
Vol 11 (9) ◽  
pp. 3594-3600 ◽  
Author(s):  
Yulu Li ◽  
Shan He ◽  
Xiao Luo ◽  
Xin Lu ◽  
Kaifeng Wu
Keyword(s):  
Quantum Dots ◽  
Stark Effect ◽  
Perovskite Quantum Dots ◽  
Optical Stark Effect ◽  
Halide Perovskite ◽  
Lead Halide ◽  
Strong Spin

Role of PEGylated CdSe-ZnS quantum dots on structural and functional properties of electrospun polycaprolactone scaffolds for blood vessel tissue engineering

2021 ◽  
Vol 151 ◽  
pp. 110430
Author(s):  
Soumya Columbus ◽  
Diksha Painuly ◽  
Renjith P. Nair ◽  
V. Kalliyana Krishnan
Keyword(s):  
Tissue Engineering ◽  
Quantum Dots ◽  
Blood Vessel ◽  
Functional Properties ◽  
Structural And Functional Properties

The role of elevated autophagy on the synaptic plasticity impairment caused by CdSe/ZnS quantum dots

Biomaterials ◽  
2013 ◽  
Vol 34 (38) ◽  
pp. 10172-10181 ◽  
Author(s):  
Liang Chen ◽  
Yanyan Miao ◽  
Lin Chen ◽  
Peipei Jin ◽  
Yingying Zha ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Synaptic Plasticity

Construction of electron and grain boundary barrier in quantum dots light-emitting diodes: The role of NiO interface coating

2021 ◽  
Vol 117 ◽  
pp. 111204
Author(s):  
Yidong Zhang ◽  
Zhenwei Dong ◽  
Pinjiang Li
Keyword(s):  
Quantum Dots ◽  
Grain Boundary ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Grain Boundary Barrier

scholarly journals The Role of Sodium in Stabilizing Tin-Lead (Sn-Pb) Alloyed Perovskite Quantum Dots

2021 ◽  
Author(s):  
Junke Jiang ◽  
Feng Liu ◽  
Qing Shen ◽  
Shuxia Tao
Keyword(s):  
Quantum Dots ◽  
Phase Stability ◽  
Band Gaps ◽  
Great Promise ◽  
Narrow Bandgap ◽  
Perovskite Quantum Dots ◽  
Optoelectronic Applications

Narrow-bandgap CsSnxPb1-xI3 perovskite quantum dots (QDs) show great promise for optoelectronic applications owing to their reduced use of toxic Pb, improved phase stability, and tunable band gaps in the visible...

Highly Fluorescent Nitrogen and Boron Doped Carbon Quantum Dots for Selective and Sensitive Detection of Fe3+

2021 ◽  
Author(s):  
Yunhao Zhang ◽  
Hongxin Qin ◽  
Yuting Huang ◽  
Feng Zhang ◽  
Hairong Liu ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Environmental Protection ◽  
Essential Role ◽  
Disease Diagnosis ◽  
Carbon Quantum Dots ◽  
Sensitive Detection ◽  
Boron Doped

Due to the essential role of Fe3+ in physiological and pathological processes, the detection of Fe3+ has drawn an increasing attention in the field of disease diagnosis and environmental protection....

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