@article{39757,
  abstract     = {{It is well known that robust and reliable photonic crystal structures can be  manufactured with very high precision by electrochemical etching of silicon wafers, which results in two- and three-dimensional photonic crystals made of macroporous silicon. However, tuning of the photonic properties is necessary in order to apply these promising structures in integrated optical devices. For this purpose, different effects have been studied, such as the infiltration with addressable dielectric liquids (liquid crystals), the utilization of Kerr-like nonlinearities of the silicon, or free-charge carrier injection by means of linear (one-photon) and nonlinear (two-photon) absorptions. The present article  provides a review, critical discussion, and perspectives about state-of-the-art tuning capabilities.}},
  author       = {{Kitzerow, Heinz-Siegfried and Matthias, Heinrich and Schweizer, Stefan L. and van Driel, Henry M. and Wehrspohn, Ralf B.}},
  issn         = {{1687-6393}},
  journal      = {{Advances in Optical Technologies}},
  publisher    = {{Hindawi}},
  title        = {{{Tuning of the Optical Properties in Photonic Crystals Made of Macroporous Silicon}}},
  volume       = {{2008}},
  year         = {{2008}},
}

@article{39765,
  author       = {{Strauß, Jochen and Hoischen, Andreas and Kitzerow, Heinz-Siegfried}},
  issn         = {{1542-1406}},
  journal      = {{Molecular Crystals and Liquid Crystals}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  number       = {{1}},
  pages        = {{281/[2147]--291/[2157]}},
  publisher    = {{Informa UK Limited}},
  title        = {{{An Efficient Optical Method to Detect Phase Transitions in Liquid Crystals}}},
  doi          = {{10.1080/15421400590955703}},
  volume       = {{439}},
  year         = {{2007}},
}

@article{39782,
  author       = {{Kitzerow, Heinz-Siegfried}},
  issn         = {{1058-725X}},
  journal      = {{Molecular Crystals and Liquid Crystals Science and Technology. Section A. Molecular Crystals and Liquid Crystals}},
  keywords     = {{Condensed Matter Physics}},
  number       = {{1}},
  pages        = {{457--472}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Dual-Frequency Addressable Gratings Based on Polymer-Dispersed Liquid Crystals}}},
  doi          = {{10.1080/10587259808025109}},
  volume       = {{321}},
  year         = {{2007}},
}

@article{39969,
  author       = {{Kitzerow, Heinz-Siegfried and Lorenz, A. and Matthias, H.}},
  issn         = {{1862-6300}},
  journal      = {{physica status solidi (a)}},
  keywords     = {{Materials Chemistry, Electrical and Electronic Engineering, Surfaces, Coatings and Films, Surfaces and Interfaces, Condensed Matter Physics, Electronic, Optical and Magnetic Materials}},
  number       = {{11}},
  pages        = {{3754--3767}},
  publisher    = {{Wiley}},
  title        = {{{Tuneable photonic crystals obtained by liquid crystal infiltration}}},
  doi          = {{10.1002/pssa.200776404}},
  volume       = {{204}},
  year         = {{2007}},
}

@article{39980,
  author       = {{Lauhof, Marcus W. and Benning, Stephan A. and Kitzerow, Heinz-Siegfried and Vill, Volkmar and Scheliga, Felix and Thorn-Csányi, Emma}},
  issn         = {{0379-6779}},
  journal      = {{Synthetic Metals}},
  keywords     = {{Materials Chemistry, Metals and Alloys, Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, Electronic, Optical and Magnetic Materials}},
  number       = {{4-5}},
  pages        = {{222--227}},
  publisher    = {{Elsevier BV}},
  title        = {{{Dichroic photo- and electroluminescence of oligo p-(phenylene vinylene) derivatives}}},
  doi          = {{10.1016/j.synthmet.2007.01.015}},
  volume       = {{157}},
  year         = {{2007}},
}

@article{39978,
  author       = {{Matthias, Heinrich and Schweizer, Stefan L and Wehrspohn, Ralf B and Kitzerow, Heinz-Siegfried}},
  issn         = {{1464-4258}},
  journal      = {{Journal of Optics A: Pure and Applied Optics}},
  keywords     = {{Atomic and Molecular Physics, and Optics}},
  number       = {{9}},
  pages        = {{S389--S395}},
  publisher    = {{IOP Publishing}},
  title        = {{{Liquid crystal director fields in micropores of photonic crystals}}},
  doi          = {{10.1088/1464-4258/9/9/s18}},
  volume       = {{9}},
  year         = {{2007}},
}

@article{39759,
  author       = {{Kitzerow, Heinz-Siegfried and Lorenz, A. and Matthias, H.}},
  issn         = {{1862-6300}},
  journal      = {{physica status solidi (a)}},
  keywords     = {{Materials Chemistry, Electrical and Electronic Engineering, Surfaces, Coatings and Films, Surfaces and Interfaces, Condensed Matter Physics, Electronic, Optical and Magnetic Materials}},
  number       = {{11}},
  pages        = {{3754--3767}},
  publisher    = {{Wiley}},
  title        = {{{Tuneable photonic crystals obtained by liquid crystal infiltration}}},
  doi          = {{10.1002/pssa.200776404}},
  volume       = {{204}},
  year         = {{2007}},
}

@inproceedings{39760,
  author       = {{Benning, Stephan A. and Lauhof, Marcus W. and Paelke, Lutz and Redler, Andreas and Scheliga, Felix and Thorn-Csanyi, Emma and Vill, Volkmar and Kitzerow, Heinz-Siegfried}},
  booktitle    = {{SPIE Proceedings}},
  editor       = {{Chien, Liang-Chy}},
  issn         = {{0277-786X}},
  publisher    = {{SPIE}},
  title        = {{{Optoelectronic and photonic properties of liquid crystals: electroluminescence and photorefractivity}}},
  doi          = {{10.1117/12.716598}},
  year         = {{2007}},
}

@inproceedings{39762,
  author       = {{Kitzerow, Heinz-Siegfried and Mertens, Guido and Matthias, Heinrich and Marsmann, Heinrich and Wehrspohn, Ralf B. and Matthias, Sven and Goesele, Ulrich and Frey, Stefan and Foell, Helmut}},
  booktitle    = {{Tuning the Optical Response of Photonic Bandgap Structures II}},
  editor       = {{Fauchet, Philippe M. and Braun, Paul V.}},
  issn         = {{0277-786X}},
  publisher    = {{SPIE}},
  title        = {{{Director fields of nematic liquid crystals in tunable photonic crystals}}},
  doi          = {{10.1117/12.616456}},
  year         = {{2006}},
}

@article{39761,
  author       = {{Paelke, Lutz and Kitzerow, Heinz-Siegfried}},
  issn         = {{0021-8979}},
  journal      = {{Journal of Applied Physics}},
  keywords     = {{General Physics and Astronomy}},
  number       = {{11}},
  publisher    = {{AIP Publishing}},
  title        = {{{Space charge field and dynamics of the grating formation in a photorefractive polymer-dispersed liquid crystal based on a photoconducting polysiloxane}}},
  doi          = {{10.1063/1.2372434}},
  volume       = {{100}},
  year         = {{2006}},
}

@article{39764,
  author       = {{Matthias, Heinrich and Röder, Thorsten and Wehrspohn, Ralf B. and Kitzerow, Heinz-Siegfried and Matthias, Sven and Picken, Stephen J.}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous)}},
  number       = {{24}},
  publisher    = {{AIP Publishing}},
  title        = {{{Spatially periodic liquid crystal director field appearing in a photonic crystal template}}},
  doi          = {{10.1063/1.2142100}},
  volume       = {{87}},
  year         = {{2005}},
}

@article{39767,
  author       = {{Mertens, G. and Wehrspohn, R. B. and Kitzerow, Heinz-Siegfried and Matthias, S. and Jamois, C. and Gösele, U.}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous)}},
  number       = {{24}},
  publisher    = {{AIP Publishing}},
  title        = {{{Tunable defect mode in a three-dimensional photonic crystal}}},
  doi          = {{10.1063/1.2139846}},
  volume       = {{87}},
  year         = {{2005}},
}

@article{39768,
  author       = {{Paelke, Lutz and Kitzerow, Heinz-Siegfried and Strohriegl, Peter}},
  issn         = {{0003-6951}},
  journal      = {{Applied Physics Letters}},
  keywords     = {{Physics and Astronomy (miscellaneous)}},
  number       = {{3}},
  publisher    = {{AIP Publishing}},
  title        = {{{Photorefractive polymer-dispersed liquid crystal based on a photoconducting polysiloxane}}},
  doi          = {{10.1063/1.1852082}},
  volume       = {{86}},
  year         = {{2005}},
}

@article{39770,
  author       = {{Stich, N. and Kitzerow, Heinz-Siegfried}},
  issn         = {{0021-8979}},
  journal      = {{Journal of Applied Physics}},
  keywords     = {{General Physics and Astronomy}},
  number       = {{3}},
  publisher    = {{AIP Publishing}},
  title        = {{{Superposition of patterns in cross-linked liquid crystals}}},
  doi          = {{10.1063/1.1832744}},
  volume       = {{97}},
  year         = {{2005}},
}

@article{39973,
  author       = {{Kitzerow, Heinz-Siegfried}},
  issn         = {{1439-4235}},
  journal      = {{ChemPhysChem}},
  keywords     = {{Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics}},
  number       = {{10}},
  pages        = {{628--632}},
  publisher    = {{Wiley}},
  title        = {{{News about Soft Condensed Matter—A Liquid Crystal Meeting Review}}},
  doi          = {{10.1002/1439-7641(20011015)2:10<628::aid-cphc628>3.0.co;2-7}},
  volume       = {{2}},
  year         = {{2005}},
}

@article{39986,
  author       = {{Hassheider, Thomas and Benning, Stephan A. and Kitzerow, Heinz-Siegfried and Achard, Marie-France and Bock, Harald}},
  issn         = {{1433-7851}},
  journal      = {{Angewandte Chemie International Edition}},
  keywords     = {{General Chemistry, Catalysis}},
  number       = {{11}},
  pages        = {{2060--2063}},
  publisher    = {{Wiley}},
  title        = {{{Color-Tuned Electroluminescence from Columnar Liquid Crystalline Alkyl Arenecarboxylates}}},
  doi          = {{10.1002/1521-3773(20010601)40:11<2060::aid-anie2060>3.0.co;2-h}},
  volume       = {{40}},
  year         = {{2005}},
}

@article{39993,
  author       = {{Mießen, Nicole and Strauß, Jochen and Hoischen, Andreas and Kürschner, Kathrin and Kitzerow, Heinz-Siegfried}},
  issn         = {{1439-4235}},
  journal      = {{ChemPhysChem}},
  keywords     = {{Physical and Theoretical Chemistry, Atomic and Molecular Physics, and Optics}},
  number       = {{11}},
  pages        = {{691--694}},
  publisher    = {{Wiley}},
  title        = {{{Durable Micropatterns Obtained from Dissipative Structures in Liquid Crystals}}},
  doi          = {{10.1002/1439-7641(20011119)2:11<691::aid-cphc691>3.0.co;2-s}},
  volume       = {{2}},
  year         = {{2005}},
}

@inbook{39982,
  author       = {{Kitzerow, Heinz-Siegfried and Reithmaier, J. P.}},
  booktitle    = {{Photonic Crystals: Advances in Design, Fabrication and Characterization}},
  editor       = {{Busch, K. and Föll, H. and Lölkes, S, and Wehrspohn, R. B.}},
  publisher    = {{Wiley-VCH}},
  title        = {{{Tunable Photonic Crystals using Liquid Crystals}}},
  year         = {{2004}},
}

@article{39774,
  author       = {{Haßheider, T. and Benning, S. A. and Lauhof, M. W. and Kitzerow, Heinz-Siegfried and Bock, H. and Watson, M. D. and Müllen, K.}},
  issn         = {{1542-1406}},
  journal      = {{Molecular Crystals and Liquid Crystals}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  number       = {{1}},
  pages        = {{461--472}},
  publisher    = {{Informa UK Limited}},
  title        = {{{ORGANIC HETEROJUNCTION PHOTOVOLTAIC CELLS MADE OF DISCOTIC, MESOGENIC MATERIALS}}},
  doi          = {{10.1080/15421400490439103}},
  volume       = {{413}},
  year         = {{2004}},
}

@article{39772,
  author       = {{Kitzerow, Heinz-Siegfried}},
  issn         = {{1542-1406}},
  journal      = {{Molecular Crystals and Liquid Crystals}},
  keywords     = {{Condensed Matter Physics, General Materials Science, General Chemistry}},
  number       = {{1}},
  pages        = {{103--110}},
  publisher    = {{Informa UK Limited}},
  title        = {{{Influence of Flexoelectricity on the Smectic-Nematic Transition: Can “Bend Grain Boundary Phases” Appear?}}},
  doi          = {{10.1080/15421400490431822}},
  volume       = {{412}},
  year         = {{2004}},
}