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 ◽  
...  

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.


2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Le Thi Ngoc Bao ◽  
Duong Dinh Phuoc ◽  
Le Thi Dieu Hien ◽  
Dinh Nhu Thao

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.



2003 ◽  
Vol 310 (5-6) ◽  
pp. 460-464 ◽  
Author(s):  
Fanyao Qu ◽  
P.C Morais


1992 ◽  
Vol 46 (15) ◽  
pp. 9569-9576 ◽  
Author(s):  
Nguyen Ba An ◽  
Hartmut Haug


ACS Photonics ◽  
2021 ◽  
Vol 8 (3) ◽  
pp. 745-751
Author(s):  
Dongmei Xiang ◽  
Yulu Li ◽  
Lifeng Wang ◽  
Yang Zhao ◽  
Kaifeng Wu


Nano Letters ◽  
2021 ◽  
Author(s):  
Mahima Makkar ◽  
Lakshay Dheer ◽  
Anjali Singh ◽  
Luca Moretti ◽  
Margherita Maiuri ◽  
...  


1988 ◽  
Vol 150 (2) ◽  
pp. 407-412 ◽  
Author(s):  
W. Schäfer ◽  
K.-H. Schuldt ◽  
R. Binder




1987 ◽  
Vol 38 (1-6) ◽  
pp. 235-238 ◽  
Author(s):  
D. Fröhlich ◽  
K. Reimann ◽  
R. Wille




2004 ◽  
Vol 132 (3-4) ◽  
pp. 141-149 ◽  
Author(s):  
B. Lassen ◽  
L.C. Lew Yan Voon ◽  
M. Willatzen ◽  
R. Melnik


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