QUANTUM WIRE POLARITONS

被引：19

作者：

TASSONE, F

BASSANI, F

机构：

[1] Scuola Normale Superiore, Pisa

来源：

NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA D-CONDENSED MATTER ATOMIC MOLECULAR AND CHEMICAL PHYSICS FLUIDS PLASMAS BIOPHYSICS | 1992年 / 14卷 / 12期

关键词：

D O I：

10.1007/BF02456781

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Using a nonlocal susceptibility with cilindrical symmetry as computed from the microscopic theory, we obtain the exciton-polariton modes in quantum wires, where the translational symmetry is preserved in one direction only. Resonant polaritons, with a finite radiative lifetime, result for k(parallel-to) < k0 = (omega/c) square-root epsilon(infinity), while wire polaritons with infinite radiative lifetime result for k(parallel-to) > k0. Dispersion laws and lifetimes are given for all values of k(parallel-to), and the separation between the longitudinal and the nonlongitudinal mode is obtained. Numerical examples are given for GaAs/Ga1-xAlxAs quantum wires.

引用

页码：1241 / 1254

页数：14

共 44 条

[1]

Abramowitz M.., 1972, HDB MATH FUNCTIONS

[2]

AGRANOVICH VM, 1960, ZH EKSP TEOR FIZ, V37, P307

[3]

AGRANOVICH VM, 1966, JETP LETT, V3, P345

[4] RADIATIVE LIFETIME OF FREE-EXCITONS IN QUANTUM-WELLS [J].