Tuning quantum-dot based photonic devices with liquid crystals

K.A. Piegdon, S. Declair, J. Förstner, T. Meier, H. Matthias, M. Urbanski, H.-S. Kitzerow, D. Reuter, A.D. Wieck, A. Lorke, C. Meier, Optics Express 18 (2010).

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Journal Article | Published | English
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Abstract
Microdisks made from GaAs with embedded InAs quantum dots are immersed in the liquid crystal 4-cyano-4’-pentylbiphenyl (5CB). The quantum dots serve as emitters feeding the optical modes of the photonic cavity. By changing temperature, the liquid crystal undergoes a phase transition from the isotropic to the nematic state, which can be used as an effective tuning mechanism of the photonic modes of the cavity. In the nematic state, the uniaxial electrical anisotropy of the liquid crystal molecules can be exploited for orienting the material in an electric field, thus externally controlling the birefringence of the material. Using this effect, an electric field induced tuning of the modes is achieved. Numerical simulations using the finite-differences time-domain (FDTD) technique employing an anisotropic dielectric medium allow to understand the alignment of the liquid crystal molecules on the surface of the microdisk resonator.
Publishing Year
Journal Title
Optics Express
Volume
18
Issue
8
Article Number
7946
ISSN
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Cite this

Piegdon KA, Declair S, Förstner J, et al. Tuning quantum-dot based photonic devices with liquid crystals. Optics Express. 2010;18(8). doi:10.1364/oe.18.007946
Piegdon, K. A., Declair, S., Förstner, J., Meier, T., Matthias, H., Urbanski, M., … Meier, C. (2010). Tuning quantum-dot based photonic devices with liquid crystals. Optics Express, 18(8). https://doi.org/10.1364/oe.18.007946
@article{Piegdon_Declair_Förstner_Meier_Matthias_Urbanski_Kitzerow_Reuter_Wieck_Lorke_et al._2010, title={Tuning quantum-dot based photonic devices with liquid crystals}, volume={18}, DOI={10.1364/oe.18.007946}, number={87946}, journal={Optics Express}, publisher={The Optical Society}, author={Piegdon, Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias, Heiner and Urbanski, Martin and Kitzerow, Heinz-S. and Reuter, Dirk and Wieck, Andreas D. and Lorke, Axel and et al.}, year={2010} }
Piegdon, Karoline A., Stefan Declair, Jens Förstner, Torsten Meier, Heiner Matthias, Martin Urbanski, Heinz-S. Kitzerow, et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” Optics Express 18, no. 8 (2010). https://doi.org/10.1364/oe.18.007946.
K. A. Piegdon et al., “Tuning quantum-dot based photonic devices with liquid crystals,” Optics Express, vol. 18, no. 8, 2010.
Piegdon, Karoline A., et al. “Tuning Quantum-Dot Based Photonic Devices with Liquid Crystals.” Optics Express, vol. 18, no. 8, 7946, The Optical Society, 2010, doi:10.1364/oe.18.007946.
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