Quantum-dot exciton dynamics with a surface plasmon: Band-edge quantum optics

被引：51

作者：

Chen, Y. N. ^{[2
,3
]}

Chen, G. Y. ^{[1
]}

Chuu, D. S. ^{[4
]}

Brandes, T. ^{[5
]}

机构：

[1] Natl Chiao Tung Univ, Inst Phys, Hsinchu 300, Taiwan

[2] Natl Cheng Kung Univ, Dept Phys, Tainan 701, Taiwan

[3] Natl Cheng Kung Univ, Natl Ctr Theoret Sci, Tainan 701, Taiwan

[4] Natl Chiao Tung Univ, Dept Electrophys, Hsinchu 300, Taiwan

[5] Tech Univ Berlin, Inst Theoret Phys, D-10623 Berlin, Germany

来源：

PHYSICAL REVIEW A | 2009年 / 79卷 / 03期

关键词：

dispersion relations; excitons; nanophotonics; nanowires; photonic crystals; quantum dots; quantum entanglement; quantum optics; superradiance; surface plasmon resonance; SUBWAVELENGTH WAVE-GUIDE; SPONTANEOUS EMISSION; PHOTOLUMINESCENCE; FLUORESCENCE; POLARITONS;

D O I：

10.1103/PhysRevA.79.033815

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We examine the spontaneous emission of a two-level emitter, quantum-dot exciton, into surface plasmons propagating on the surface of a cylindrical nanowire. The numerically obtained dispersion relations are found to influence the spontaneous emission rate strongly. At certain values of the exciton band gap, the emission rates can go to infinity due to the band-edge feature of the dispersion relations. Borrowing the idea from the photonic crystals, we model the quantum-dot exciton dynamics with a non-Markovian way and demonstrate that the decay can undergo an oscillatory behavior. In addition, we also show that the remote entangled states can be generated via super-radiance by using the one-dimensional propagating feature of the nanowire surface plasmons.

引用

页数：6

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