QUANTUM-WELL REFLECTIVITY AND EXCITON-POLARITON DISPERSION

被引:122
作者
TASSONE, F [1 ]
BASSANI, F [1 ]
ANDREANI, LC [1 ]
机构
[1] INST ROMAND RECH NUMER & PHYS MAT,PHB ECUBLENS,CH-1015 LAUSANNE,SWITZERLAND
来源
PHYSICAL REVIEW B | 1992年 / 45卷 / 11期
关键词
D O I
10.1103/PhysRevB.45.6023
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We prove that reflectivity measurements as a function of angle of incidence allow the measurement of the exciton-polariton modes in quantum wells. The resonant polaritons at k parallel-to > k0 = omega/upsilon manifest themselves as peaks in the reflectivity while surface polaritons at k parallel-to > k0 manifest themselves as dips in the attenuated total reflection. A comparison of the reflectivities with polarization perpendicular and parallel to the plane of incidence allows us to detect the different polariton modes and to measure the dispersion relation. We also give expressions to compute reflectivity and transmission for the case of multiple quantum wells, including the effects of multiple reflections. Examples are given for standard reflectivity of GaAs/AlxGa1-xAs quantum wells and for attenuated total reflection of CuCl/CaF2 quantum wells.
引用
收藏
页码:6023 / 6030
页数:8
相关论文
共 26 条
[1]  
AGRANOVI.VM, 1966, JETP LETT-USSR, V3, P223
[2]   RADIATIVE LIFETIME OF FREE-EXCITONS IN QUANTUM-WELLS [J].
ANDREANI, LC ;
TASSONE, F ;
BASSANI, F .
SOLID STATE COMMUNICATIONS, 1991, 77 (09) :641-645
[3]   EXCHANGE INTERACTION AND POLARITON EFFECTS IN QUANTUM-WELL EXCITONS [J].
ANDREANI, LC ;
BASSANI, F .
PHYSICAL REVIEW B, 1990, 41 (11) :7536-7544
[4]   ACCURATE THEORY OF EXCITONS IN GAAS-GA1-XALXAS QUANTUM-WELLS [J].
ANDREANI, LC ;
PASQUARELLO, A .
PHYSICAL REVIEW B, 1990, 42 (14) :8928-8938
[5]   EXCITON-POLARITONS IN QUANTUM-WELLS [J].
ANDREANI, LC .
PHYSICA SCRIPTA, 1991, T35 :111-115
[6]  
ANDREANI LC, 1989, SYMMETRY NATURE, P19
[7]   EXCHANGE SPLITTING OF LIGHT HOLE EXCITONS IN AL1-XGAXAS-GAAS QUANTUM-WELLS [J].
BERZ, MW ;
ANDREANI, LC ;
STEIGMEIER, EF ;
REINHART, FK .
SOLID STATE COMMUNICATIONS, 1991, 80 (08) :553-556
[9]  
FROHLICH D, 1991, P INT M OPTICS EXCIT
[10]  
GREENAWAY LD, 1964, OPTICAL PROPERTIES S