We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Nonlinear optical properties in the laser-dressed two-level AlGaN/GaN single quantum well.
- Authors
Panda, Monalisa; Das, Tapaswini; Panda, B. K.
- Abstract
The electronic states in the laser-dressed hexagonal and cubic AlGaN/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.
- Subjects
QUANTUM wells; ENERGY-band theory of solids; POTENTIAL theory (Physics); ELECTRIC fields; ELECTROMAGNETIC theory
- Publication
International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics, 2018, Vol 32, Issue 4, p-1
- ISSN
0217-9792
- Publication type
Article
- DOI
10.1142/S0217979218500327