@article{3959,
  abstract     = {{Microresonators containing quantum dots find application in devices like single photon emitters for quantum information technology as well as low threshold laser devices. We demonstrate the fabrication of 60 nm thin zinc-blende AlN microdisks including cubic GaN quantum dots using dry chemical etching techniques. Scanning electron microscopy analysis reveals the morphology with smooth surfaces of the microdisks. Micro-photoluminescence measurements exhibit optically active quantum dots. Furthermore this is the first report of resonator modes in the emission spectrum of a cubic AlN microdisk.}},
  author       = {{Bürger, M. and Kemper, R.M. and Bader, C.A. and Ruth, M. and Declair, S. and Meier, Cedrik and Förstner, Jens and As, D.J.}},
  issn         = {{0022-0248}},
  journal      = {{Journal of Crystal Growth}},
  keywords     = {{tet_topic_qd, tet_topic_microdisk}},
  pages        = {{287--290}},
  publisher    = {{Elsevier BV}},
  title        = {{{Cubic GaN quantum dots embedded in zinc-blende AlN microdisks}}},
  doi          = {{10.1016/j.jcrysgro.2012.12.058}},
  volume       = {{378}},
  year         = {{2013}},
}

@article{3963,
  abstract     = {{Whispering gallery modes (WGMs) were observed in 60 nm thin cubic AlN microdisk resonators containing a single layer of non-polar cubic GaN quantum dots. Freestanding microdisks were patterned by means of electron beam lithography and a two step reactive ion etching process. Micro-photoluminescence spectroscopy investigations were performed for optical characterization. We analyzed the mode spacing for disk diameters ranging from 2-4 lm. Numerical investigations using three dimensional finite difference time domain calculations were in good agreement
with the experimental data. Whispering gallery modes of the radial orders 1 and 2 were identified by means of simulated mode field distributions.}},
  author       = {{Bürger, M. and Ruth, M. and Declair, S. and Förstner, Jens and Meier, Cedrik and As, Donat Josef}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{tet_topic_qd, tet_topic_microdisk}},
  number       = {{8}},
  pages        = {{081105}},
  publisher    = {{AIP Publishing}},
  title        = {{{Whispering gallery modes in zinc-blende AlN microdisks containing non-polar GaN quantum dots}}},
  doi          = {{10.1063/1.4793653}},
  volume       = {{102}},
  year         = {{2013}},
}

@article{4118,
  abstract     = {{We numerically investigate the coupling between circular resonators and study strong light‐matter coupling of single as well as multiple circular resonators to quantum‐mechanical resonators in two dimensional model simulations. For all cases, the computed resonances of the coupled system as function of the detuning show anti‐crossings.

The obtained mode splittings of coupled optical resonators are strongly depending on distance and cluster in almost degenerate eigenstates for large distances, as is known from coupled resonator optical waveguides. Vacuum Rabi splitting is observed for a quantum dot strongly coupled to eigenmodes of single perfectly cylindrical resonators. }},
  author       = {{Declair, S. and Meier, Torsten and Förstner, Jens}},
  issn         = {{1862-6351}},
  journal      = {{physica status solidi (c)}},
  keywords     = {{tet_topic_phc, tet_topic_microdisk}},
  number       = {{4}},
  pages        = {{1254--1257}},
  publisher    = {{Wiley}},
  title        = {{{Numerical investigation of the coupling between microdisk modes and quantum dots}}},
  doi          = {{10.1002/pssc.201000869}},
  volume       = {{8}},
  year         = {{2011}},
}

@article{4125,
  abstract     = {{We numerically investigate the behavior of Whispering Gallery Modes (WGMs) in circularly shaped resonators like microdisks, with diameters in the range of optical vacuum wavelengths. The microdisk is embedded in an uniaxial anisotropic dielectric environment. By changing the optical anisotropy, one obtains spectral tunability of the optical modes. The degree of tunability strongly depends on the radial (azimuthal) mode order M (N). As the modes approach each other spectrally, anticrossing is observed, leading to a rearrangement of the optical states.}},
  author       = {{Declair, S. and Meier, Cedrik and Meier, Torsten and Förstner, Jens}},
  issn         = {{1569-4410}},
  journal      = {{Photonics and Nanostructures - Fundamentals and Applications}},
  keywords     = {{tet_topic_microdisk}},
  number       = {{4}},
  pages        = {{273--277}},
  publisher    = {{Elsevier BV}},
  title        = {{{Anticrossing of Whispering Gallery Modes in microdisk resonators embedded in an anisotropic environment}}},
  doi          = {{10.1016/j.photonics.2010.03.002}},
  volume       = {{8}},
  year         = {{2010}},
}

@article{4123,
  abstract     = {{GaAs-based semiconductor microdisks with high quality whispering gallery modes (Q44000) have been fabricated.A layer of self-organized InAs quantumdots (QDs) served as a light source to feed the optical modes at room temperature. In order to achieve frequency tuning of the optical modes, the microdisk devices have been immersed in 4 – cyano – 4´-pentylbiphenyl (5CB), a liquid crystal(LC) with a nematic phase below the clearing temperature of  TC≈34°C .We have studied the device performance in the temperature rangeof T=20-50°C, in order to investigate the influence of the nematic–isotropic phase transition on the optical modes. Moreover,we havea pplied an AC electric field to the device,which leads in the nematic phase to a reorientation of the anisotropic dielectric tensor of the liquid crystal.This electrical anisotropy can be used to achieve electrical tunability of the optical modes.Using the finite-difference time domain (FDTD) technique with an anisotropic material model, we are able to describe the influence of the liquid crystal qualitatively.}},
  author       = {{Piegdon, Karoline A. and Offer, Matthias and Lorke, Axel and Urbanski, Martin and Hoischen, Andreas and Kitzerow, Heinz-Siegfried and Declair, Stefan and Förstner, Jens and Meier, Torsten and Reuter, Dirk and Wieck, Andreas D. and Meier, Cedrik}},
  issn         = {{1386-9477}},
  journal      = {{Physica E: Low-dimensional Systems and Nanostructures}},
  keywords     = {{tet_topic_qd, tet_topic_microdisk}},
  number       = {{10}},
  pages        = {{2552--2555}},
  publisher    = {{Elsevier BV}},
  title        = {{{Self-assembled quantum dots in a liquid-crystal-tunable microdisk resonator}}},
  doi          = {{10.1016/j.physe.2009.12.051}},
  volume       = {{42}},
  year         = {{2010}},
}

@article{4172,
  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.}},
  author       = {{Piegdon, Karoline A. and Declair, Stefan and Förstner, Jens and Meier, Torsten and Matthias, Heiner and Urbanski, Martin and Kitzerow, Heinz-Siegfried and Reuter, Dirk and Wieck, Andreas D. and Lorke, Axel and Meier, Cedrik}},
  issn         = {{1094-4087}},
  journal      = {{Optics Express}},
  keywords     = {{tet_topic_qd, tet_topic_microdisk}},
  number       = {{8}},
  publisher    = {{The Optical Society}},
  title        = {{{Tuning quantum-dot based photonic devices with liquid crystals}}},
  doi          = {{10.1364/oe.18.007946}},
  volume       = {{18}},
  year         = {{2010}},
}

@inproceedings{4179,
  abstract     = {{We numerically investigate Whispering Gallery Modes (WGM) in a subwavelength microdisk resonator [1] embedded in an uniaxial anisotropic liquid crystal environment. It is shown that the WGMs have anticrossing behavior when modes of different radial mode order M or azimuthal order N approach each other spectrally. }},
  author       = {{Förstner, Jens and Declair, S. and Meier, Cedrik and Meier, Torsten}},
  booktitle    = {{Theoretical and Computational Nanophotonics Tacona-Photonics}},
  keywords     = {{tet_topic_microdisk}},
  location     = {{Tacona}},
  number       = {{1}},
  pages        = {{60--62}},
  title        = {{{Anticrossing of Whispering Gallery Modes in Microdisk Resonators Embedded in a Liquid Crystal}}},
  doi          = {{10.1063/1.3253921}},
  volume       = {{1176}},
  year         = {{2009}},
}

@inproceedings{4181,
  abstract     = {{We experimentally and theoretically investigate microdisk resonators with embedded quantum dots immersed in a liquid crystal in its nematic phase, showing the tunabililty of the photonic modes via external parameters like temperature or electric field.}},
  author       = {{Förstner, Jens and Meier, Cedrik and Piegdon, Karoline and Declair, Stefan and Hoischen, Andreas and Urbanski, Mark and Meier, Torsten and Kitzerow, Heinz-Siegfried}},
  booktitle    = {{Advances in Optical Sciences Congress}},
  isbn         = {{9781557528735}},
  keywords     = {{tet_topic_microdisk}},
  location     = {{Honolulu, Hawaii United States}},
  publisher    = {{OSA Technical Digest (CD) (Optical Society of America, 2009), paper NTuC2}},
  title        = {{{Coupling Dynamics of Quantum Dots in a Liquid-Crystal-Tunable Microdisk Resonator}}},
  doi          = {{10.1364/nlo.2009.ntuc2}},
  year         = {{2009}},
}