光子学报
光子學報
광자학보
ACTA PHOTONICA SINICA
1999年
2期
97-100
,共4页
三阶非线性光学吸收率%耦合量子线
三階非線性光學吸收率%耦閤量子線
삼계비선성광학흡수솔%우합양자선
Third-order optical absorption%Double-layered quantum wires
本文研究了磁场中耦合量子线的三阶非线性光学吸收率,并且利用密度矩阵算符理论导出了三阶非线性光学吸收率的解析表达式.最后,以GaAs/AlxGa1-xAs耦合量子线为例作了数值计算,并绘出了三阶非线性光学吸收率与磁场B,光子能量ω以及间隔D之间的依赖关系.
本文研究瞭磁場中耦閤量子線的三階非線性光學吸收率,併且利用密度矩陣算符理論導齣瞭三階非線性光學吸收率的解析錶達式.最後,以GaAs/AlxGa1-xAs耦閤量子線為例作瞭數值計算,併繪齣瞭三階非線性光學吸收率與磁場B,光子能量ω以及間隔D之間的依賴關繫.
본문연구료자장중우합양자선적삼계비선성광학흡수솔,병차이용밀도구진산부이론도출료삼계비선성광학흡수솔적해석표체식.최후,이GaAs/AlxGa1-xAs우합양자선위례작료수치계산,병회출료삼계비선성광학흡수솔여자장B,광자능량ω이급간격D지간적의뢰관계.
The thrid-order nonlinear optical absorptions of two vertically stacked quantum wires with a perpendicular magnetic-field are investigated.The analytic formula for the third-order nonlinearoptical absorption coefficient of double-layered quantum wires is derived by means of density matrix treatment.The numerical results are presented for GaAs/AlxGa1-xAs double quantum wires.Finally,the calculated third-order nonlinear optical absorptions are plotted versus the magnetic-field B,the photon energy ω and the interlayer distance D.