Nonlinear intersubband optical absorption in semiparabolic quantum wells |
| |
| Authors: | Guang-hui Wang |
| |
| Institution: | Laboratory of Nanophotonic Functional Materials and Devices, South China Normal University, Guangzhou 510006, People''s Republic of China |
| |
| Abstract: | The linear and third-order nonlinear optical absorptions in semiparabolic quantum wells are studied in detail. Analytic formulas for the linear and third-order nonlinear optical absorption coefficients are obtained using the compact density matrix approach. Based on this model, numerical results are presented for typical GaAs/AlGaAs semiparabolic quantum wells. The results show that the factors of the incident optical intensity and the semiparabolic confinement frequency have great influences on the total optical absorption coefficients. |
| |
| Keywords: | Nonlinear optical absorption Semiparabolic quantum well Density matrix approach |
| 本文献已被 ScienceDirect 等数据库收录！ |
