Probing the statistical properties of Anderson localization with quantum emitters
Entity
UAM. Departamento de Física de la Materia CondensadaPublisher
IOP Publishing Ltd and Deutsche PhysikalischeDate
2011-06-28Citation
10.1088/1367-2630/13/6/063044
New Journal of Physics 13 (2011): 063044
ISSN
1367-2630DOI
10.1088/1367-2630/13/6/063044Funded by
We thank P T Kristensen and N A Mortensen for fruitful discussions on the simulations and theoretical model and gratefully acknowledge financial support from the Villum Foundation, the Danish Council for Independent Research (Natural Sciences and Technology and Production Sciences) and the European Research Council (ERC consolidator grant). LSFP acknowledges financial support from the Spanish MICINN Consolider Nanolight project (CSD2007-00046)Editor's Version
http://dx.doi.org/10.1088/1367-2630/13/6/063044Subjects
Experiments; Laser optics; Photoluminescence; Wave propagation; Photonic crystals; FísicaRights
© IOP Publishing Ltd and Deutsche Physikalische GesellschaftAbstract
Wave propagation in disordered media can be strongly modified by multiple scattering and wave interference. Ultimately, the so-called Andersonlocalized regime is reached when the waves become strongly confined in space. So far, Anderson localization of light has been probed in transmission experiments by measuring the intensity of an external light source after propagation through a disordered medium. However, discriminating between Anderson localization and losses in these experiments remains a major challenge. In this paper, we present an alternative approach where we use quantum emitters embedded in disordered photonic crystal waveguides as light sources. Anderson-localized modes are efficiently excited and the analysis of the photoluminescence spectra allows us to explore their statistical properties, for example the localization length and average loss length. With increasing the amount of disorder induced in the photonic crystal, we observe a pronounced increase in the localization length that is attributed to changes in the local density of states, a behavior that is in stark contrast to entirely random systems. The analysis may pave the way for accurate models and the control of Anderson localization in disordered photonic crystals
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Google Scholar:Smolka, Stephan
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Thyrrestrup, Henri
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Sapienza, Luca
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Lehmann, Tau B.
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Rix, Kristian R.
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Froufe-Pérez, Luis S.
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García, Pedro D.
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Lodahl, Peter
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