Excitonic polaritons in Fibonacci quasicrystals

被引：45

作者：

Hendrickson, J. ^{[1
]}

Richards, B. C. ^{[1
]}

Sweet, J. ^{[1
]}

Khitrova, G. ^{[1
]}

Poddubny, A. N. ^{[2
]}

Ivchenko, E. L. ^{[2
]}

Wegener, M. ^{[3
]}

Gibbs, H. M. ^{[1
]}

机构：

[1] Univ Arizona, Coll Opt Sci, Tucson, AZ 85721 USA

[2] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[3] Univ Karlsruhe TH, Inst Angew Phys, D-76131 Karlsruhe, Germany

来源：

OPTICS EXPRESS | 2008年 / 16卷 / 20期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1364/OE.16.015382

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The fabrication and characterization of light-emitting one-dimensional photonic quasicrystals based on excitonic resonances is reported. The structures consist of high-quality GaAs/AlGaAs quantum wells grown by molecular-beam epitaxy with wavelength-scale spacings satisfying a Fibonacci sequence. The polaritonic (resonant light-matter coupling) effects and light emission originate from the quantum well excitonic resonances. Measured reflectivity spectra as a function of detuning between emission and Bragg wavelength are in good agreement with excitonic polariton theory. Photoluminescence experiments show that active photonic quasicrystals, unlike photonic crystals, can be good light emitters: While their long-range order results in a stopband similar to that of photonic crystals, the lack of periodicity results in strong emission. (C) 2008 Optical Society of America

引用

页码：15382 / 15387

页数：6

共 33 条

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