Model for great enhancement of second-harmonic generation in quantum dots

1995 ◽  
Vol 12 (4) ◽  
pp. 559 ◽  
Author(s):  
A. Guerrero ◽  
Bernardo S. Mendoza
Keyword(s):  
Quantum Dots ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic

Midinfrared second-harmonic generation in p-type InAs/GaAs self-assembled quantum dots

1999 ◽  
Vol 75 (6) ◽  
pp. 835-837 ◽  
Author(s):  
T. Brunhes ◽  
P. Boucaud ◽  
S. Sauvage ◽  
F. Glotin ◽  
R. Prazeres ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Second Harmonic ◽  
Self Assembled ◽  
P Type

scholarly journals Optical Rectification and Second Harmonic Generation on Quasi-Realistic InAs/GaAs Quantum Dots: With Attention to Wetting Layer Effect

2013 ◽  
Vol 2013 ◽  
pp. 1-12 ◽  
Author(s):  
A. Khaledi-Nasab ◽  
M. Sabaiean ◽  
M. Sahrai ◽  
V. Fallahi
Keyword(s):  
Quantum Dots ◽  
Second Harmonic Generation ◽  
Harmonic Generation ◽  
Critical Radius ◽  
Second Harmonic ◽  
Size Variation ◽  
Second Order ◽  
Optical Rectification ◽  
Nonlinear Phenomena ◽  
Wetting Layer

In this paper, we have performed a theoretical study on nonlinear optical rectification (OR) and second harmonic generation (SHG) for three-level dome-shaped InAs/GaAs quantum dots (QDs) in the presence of wetting layer (WL). We used the compact density matrix framework and effective mass approximation to investigate the second order nonlinear phenomena on InAs/GaAs QD. It is demonstrated that second harmonic generation (SHG), optical rectification (OR), and their mutual absorption and refractive index changes are quite sensitive to the size of QDs. The size variations have profound irregular behavior owing to distribution of envelope function on WL and QD simultaneously. Moreover it is found that R=13 nm is a critical radius where the regular variation takes place. It is shown that size variation causes blue shift until Critical radius (R=13 nm) and after that, increasing the QD size lead to redshift in second order phenomena.

Sign in / Sign up

Export Citation Format

Share Document