Exciton-photon coupling in photonic wires
Exciton-photon coupling in photonic wires
复制标题
光子线中的激子-光子耦合
DOI：
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发表时间：
1998
期刊：
影响因子：
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通讯作者：
J. Reithmaier
中科院分区：
文献类型：
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作者：
A. Tartakovskii;V. Kulakovskii;A. Forchel;J. Reithmaier
利用二维受限半导体Bragg微腔中的角度分辨光致发光研究了腔-偏振模色散和激子-光子耦合效应。用量子井~QW！插入到空心层中。横向光子限制导致了附加光子模的出现。激子-光子的强耦合导致腔内极化子的形成，其能量-波矢色散对应于具有理想量子波的光子线--只有具有相同侧对称性的光子和激子模之间的耦合！量子波势涨落对激子横向对称性的微小影响无疑表明，极化子是通过相干的集体激子态形成的。@S0163-1829~98 52512-X#
Cavity-polariton mode dispersion and exciton-photon coupling effects have been investigated by angleresolved photoluminescence in a two dimensionally confined semiconductor Bragg microcavity ~photonic wires! with a quantum well ~QW! inserted in the cavity layer. The lateral photon confinement results in the appearance of additional photonic modes. The strong exciton-photon coupling leads to the formation of cavity polaritons with energy-wave vector dispersion corresponding to the photonic wires with ideal QW’s ~the coupling only between the photon and exciton modes with the same lateral symmetry!. The small influence of QW potential fluctuations disturbing exciton lateral symmetry undoubtedly shows that the polaritons form via coherent collective exciton states. @S0163-1829~98!52512-X#