Study on built-in electric field and nonlinear optical properties in InxGa1-xN/GaN single quantum well under the presence of external applied field

2020 ◽  
Author(s):  
S. Panda ◽  
T. Das ◽  
B. K. Panda
Keyword(s):  
Optical Properties ◽  
Electric Field ◽  
Quantum Well ◽  
Applied Field ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Single Quantum ◽  
Single Quantum Well

Nonlinear optical properties in an asymmetric double δ-doped quantum well with a Schottky barrier: Electric field effects

2013 ◽  
Vol 251 (2) ◽  
pp. 415-422 ◽  
Author(s):  
J. G. Rojas-Briseño ◽  
J. C. Martínez-Orozco ◽  
I. Rodríguez-Vargas ◽  
M. E. Mora-Ramos ◽  
C. A. Duque
Keyword(s):  
Optical Properties ◽  
Electric Field ◽  
Quantum Well ◽  
Schottky Barrier ◽  
Nonlinear Optical ◽  
Nonlinear Optical Properties ◽  
Electric Field Effects ◽  
Field Effects

Nonlinear optical properties in the laser-dressed two-level AlxGa1−xN/GaN single quantum well

2018 ◽  
Vol 32 (04) ◽  
pp. 1850032 ◽  
Author(s):  
Monalisa Panda ◽  
Tapaswini Das ◽  
B. K. Panda
Keyword(s):  
Electric Field ◽  
Quantum Well ◽  
Quantum Wells ◽  
Effective Mass ◽  
Nonlinear Optical ◽  
Energy Levels ◽  
Internal Electric Field ◽  
Single Quantum ◽  
Single Quantum Well ◽  
Increase With Increase

The electronic states in the laser-dressed hexagonal and cubic Al[Formula: see text]Ga[Formula: see text]N/GaN single quantum wells are calculated using the effective mass equation. The hexagonal single quantum well contains an internal electric field due to spontaneous and piezoelectric polarizations. The effective mass equation is solved by the finite difference method. The energy levels in both cubic and hexagonal laser-dressed wells are found to increase with increase in laser dressing as the effective well widths in both the wells increase. The intersubband energy spacing between first excited state and ground state increases in the cubic quantum well, whereas it decreases in the hexagonal well due to the presence of internal electric field in it. Using the compact density matrix method with iterative procedure, first-, second- and third-order nonlinear optical susceptibilities in the laser-dressed quantum well are calculated taking only two levels. While the susceptibilities in the hexagonal well are found to get red shifted, the susceptibilities in the cubic well are blue shifted.

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