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Abstracts
Linear, third-order nonlinear and total optical absorption coefficients associated with intra-conduction band in wurtzite unstrained (In,Ga)N-GaN coupled quantum wells are calculated. Based on the effective-mass and the one-band parabolic approximations, the well and the barrier-widths effects are investigated variationally under finite confinement potential barrier. The results indicate that the structure size have a great influence on the optical properties. The results reveal also that larger optical absorption coefficients are obtained compared to single quantum well and a significant red-shift is obtained as the structure size increases. It is found that the modulation of the absorption coefficients can be easily obtained by adjusting the barrier and/or the well widths.
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Journal
Year
Volume
Issue
Pages
787-790
Physical description
Dates
published
2015-03
received
2014-04-29
(unknown)
2014-12-06
Contributors
author
- LPS, Faculty of Science, Dhar EL Mehrez, BP 1796 Fes-Atlas, Morocco
- Special Mathematics, CPGE Rabat, Morocco
author
- Department of Physics, Govt. Arts and Science College, Melur-625106, Madurai, India
References
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n324kz