Publications

Link to Google Scholar profile

2020

S. L. Schafforz, G. Nordendorf, G. Nava, L. Lucchetti, A. Lorenz, Formation of relocatable umbilical defects in a liquid crystal with positive dielectric anisotropy induced via photovoltaic fields, J. Mol. Liq. 307, 112963 (2020). Share link: https://authors.elsevier.com/a/1arh7c8qpMYYu, DOI link: https://doi.org/10.1016/j.molliq.2020.112963

G. Nordendorf, S. L. Schafforz, E. B. Käkel, S. Miao, A. Lorenz, Surface grafted agents with various molecular lengths and photochemically active benzophenone moiety, Phys. Chem. Chem. Phys. 22, 1774 (2020). https://doi.org/10.1039/C9CP05722F

2019

F. Jahanbakhsh, J. P. Bonab, M. H. Majles Ara, A. Lorenz, H. Khoshsima, M. Darabi, Dispersion of multiferroic BiFeO3 nanoparticles in nematic liquid crystals, Appl. Phys. A 125, 877 (2019). https://doi.org/10.1007/s00339-019-3153-0

A. Habibpourmoghadam, L. Wolfram, F. Jahanbakhsh, B. Mohr, V. Y. Reshetnya, A. Lorenz, Impact of polymer in tuneable liquid crystal phase gratings, ACS Appl. Electron. Mater. 1, 2574 (2019). https://doi.org/10.1021/acsaelm.9b00579

Invited Paper: Z. Gong, C. Ostwald, N. M. Hoinka, A. Lorenz, Ferroelectric particles in LC and polymer composite test devices, Proceedings of SPIE Optics + Photonics, Liquid Crystals XXIII, 110920U (2019). http://dx.doi.org/10.1117/12.2530502

F. Jahanbakhsh, A. Lorenz, Fast copolymer network liquid crystals for tunable birefringence colors, Appl. Opt. 58, 5587 (2019). https://doi.org/10.1364/AO.58.005587

S. Schafforz, Y. Yang, A. Lorenz, Defect formation in N* LCs via photovoltaic fields: Impact of surface treatment, Liq. Cryst. 46, 2013 (2019). https://doi.org/10.1080/02678292.2019.1626923

F. Jahanbakhsh, A. Lorenz, Impact of co-doping concentration in copolymer network liquid crystals, Liq. Cryst., published online (2019). http://dx.doi.org/10.1080/02678292.2019.1573330

C. Isenberg, E.B. Käkel, T. P. I. Saragi, P. Thoma, B. Weber, A. Lorenz, Generation of Twisted Nanowires with Achiral Organic Amphiphilic Copper Complexes, RSC Adv. 9, 1807 (2019). http://xlink.rsc.org/?DOI=C8RA09027K

 

2018

L. Jiao, D. R. Evans, A. Lorenz, Photovoltaic light valve induced in a vertically aligned nematic liquid crystal on a x-cut Fe:LiNbO3 substrate, Journal Optical Data Processing and Storage (Special Issue: Photosensitive Soft Materials and Devices - Fundamentals and Applications, edited by A. Kiraz and L. Lucchetti) 4, 8 (2018). https://doi.org/10.1515/odps-2018-0002

Invited paper: L. Braun, Z. Gong, A. Habibpourmoghadam, S. L. Schafforz, L. Wolfram, A. Lorenz Polymerization speed and diffractive experiments in polymer network LC test cells, in I. Muševič, L.-C. Chien, D. J. Broer, and V. G. Chigrinov, eds. (SPIE, 2018), p. 22. https://doi.org/10.1117/12.2289725

L. Braun, S. L. Schafforz, A. Lorenz, Surface grafted crosslinker in polymer network liquid crystals,  J. Mol. Liq. 267, 109 (2018). https://doi.org/10.1016/j.molliq.2018.01.173

 

2017

A. Habibpourmoghadam, L. Lucchetti, D. R. Evans, V. Y. Reshetnyak, A. Lorenz, Laser-induced erasable patterns in a N* liquid crystal on an iron doped lithium niobate surface, Opt. Express 25, 26148 (2017). https://doi.org/10.1364/OE.25.026148

Invited paper: A. Habibpourmoghadam, L. Jiao, F. Omairat, D. R. Evans, V. Y. Reshetnyak, A. Lorenz, Confined photovoltaic fields in a photo-responsive liquid crystal test cell, Liquid Crystals XXI, Proceedings Volume 10361, 1036112 (2017). https://doi.org/10.1117/12.2273990

A. Habibpourmoghadam, L. Jiao, V. Reshetnyak, D. R. Evans, A. Lorenz, Optical manipulation and defect creation in a liquid crystal on a photo responsive surface, Phys. Rev. E 96, 022701 (2017). https://doi.org/10.1103/PhysRevE.96.022701   

A. Lorenz, F. Omairat, L. Braun, V. Kolosova, Nematic copolymer network LCs for swift continuous phase modulation and opaque scattering states, Mol. Cryst. and Liq. Cryst. 646, 220 (2017). http://dx.doi.org/10.1080/15421406.2017.1288001

 

2016

A. Lorenz, L. Braun, V. Kolosova, Continuous Optical Phase Modulation in a Copolymer Network Nematic Liquid Crystal, ACS Photonics 3, 1188 (2016). http://pubs.acs.org/doi/abs/10.1021/acsphotonics.6b00072

Invited paper: L. Braun, A. Lorenz, V. Kolosova, R. Hyman, T. D. Wilkinson, Continuous phase modulation in polymer-stabilized liquid crystals, Emerging Liquid Crystal Technologies XI, edited by Liang-Chy Chien, Proceedings of SPIE Vol. 9769, 976912 (2016). https://doi.org/10.1117/12.2222379

R. M. Hyman, A. Lorenz, T. D. Wilkinson, Phase modulation using different orientations of a chiral nematic in liquid crystal over silicon devices, Liq. Cryst. 43, 83 (2016). http://dx.doi.org/10.1080/02678292.2015.1061146   

 

2015

J. Yuan, G. Tan, D. Xu, F. Peng, A. Lorenz, S.-T. Wu, A low-voltage and fast-response polymer-stabilized hyper-twisted nematic liquid crystal, Opt. Mat. Express 5, 1341 (2015). http://dx.doi.org/10.1364/OME.5.001339

 

2014

R. M. Hyman, A. Lorenz, S. M. Morris, T. D. Wilkinson, Polarization-independent phase modulation using a blue-phase liquid crystal over silicon device, Appl. Opt. 53, 6925 (2014). http://www.opticsinfobase.org/abstract.cfm?URI=ao-53-29-6925

D. M. Agra-Kooijman, G. Singh, A. Lorenz, P. J. Collings, H.-S. Kitzerow, S. Kumar, Columnar Molecular Aggregation in the Aqueous Solutions of Disodium Cromoglycate, Phys. Rev. E 89, 062504 (2014). https://doi.org/10.1103/PhysRevE.89.062504

A. Lorenz, D. J. Gardiner, S. M. Morris, F. Castles, M. M. Qasim, S. S. Choi, W.-S. Kim, H. J. Coles, T. D. Wilkinson, Electrical addressing of polymer stabilized hyper-twisted chiral nematic liquid crystals with interdigitated electrodes: Experiment and model, Appl. Phys. Lett. 104, 071102 (2014). http://dx.doi.org/10.1063/1.4865558

2013

A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook H.-S. Kitzerow, Bilayers in Nanoparticle-Doped Polar Mesogens, Phys. Rev. E 88, 062505 (2013). http://dx.doi.org/10.1103/PhysRevE.88.062505

G. Nordendorf, A. Lorenz, A. Hoischen, J. Schmidtke, H. Kitzerow, D. Wilkes M. Wittek, Hysteresis and memory factor of the Kerr effect in blue phases, J. Appl. Phys. 114, 173104 (2013). http://dx.doi.org/10.1063/1.4828477

Front page: D.-H. Ko, S. M. Morris, A. Lorenz, F. Castles, H. Butt, D. J. Gardiner, M. M. Qasim, B. Wallikewitz, P. J. W. Hands, T. D. Wilkinson, G. Amaratunga, H. J. Coles R. H. Friend, A nano-patterned photonic crystal laser with a dye-doped liquid crystal, Appl. Phys. Lett. 103, 051101 (2013). http://dx.doi.org/10.1063/1.4816243

Feature: A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook H.-S. Kitzerow, X-ray scattering of nematic liquid crystal nano-dispersion with negative dielectric anisotropy, Appl. Opt. 52, E1-E5 (2013). http://dx.doi.org/10.1364/AO.52.0000E1

A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, M. Fernández Martínez H.-S. Kitzerow, Doping a Mixture of Two Smectogenic Liquid Crystals with Barium Titanate Nanoparticles, J. Phys. Chem. B 117, 937−941 (2013). http://dx.doi.org/10.1021/jp310624c

2007-2012

A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook H.-S. Kitzerow, Doping the liquid crystal 5CB with milled BaTiO3 nanoparticles, Phys. Rev. E. 86, 051704 (2012). http://dx.doi.org/10.1103/PhysRevE.86.051704

A. Lorenz, H.-S. Kitzerow, Efficient electro-optic switching in a photonic liquid crystal fiber, Appl. Phys. Lett. 98, 241106 (2011). http://dx.doi.org/10.1063/1.3599848

A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Switchable waveguiding in two liquid crystal-filled photonic crystal fibers, Appl. Opt. 49, 3846–3853 (2010). http://dx.doi.org/10.1364/AO.49.003846

A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Infiltrated photonic crystal fiber: experiments and liquid crystal scattering model, Opt. Express 18, 3519‐3530 (2010). http://dx.doi.org/10.1364/OE.18.003519

A. Lorenz, H.-S. Kitzerow, A. Schwuchow, J. Kobelke, H. Bartelt, Photonic crystal fiber with a dual-frequency addressable liquid crystal: behavior in the visible wavelength range, Opt. Express 16, 19375‐19381 (2008). http://dx.doi.org/10.1364/OE.16.019375

H.-S. Kitzerow, A. Lorenz, H. Matthias, Tuneable photonic crystals obtained by liquid crystal infiltration, physica status solidi (a) 11 (204), 3754-3767 (2007). http://dx.doi.org/10.1002/pssa.200776404

40.   Invited: Z. Gong, C. Ostwald, N. M. Hoinka, A. Lorenz, Ferroelectric particles in LC and polymer composite test devices, SPIE Optics and Photonics, Liquid Crystals XXIII (11 - 15 August 2019).

39.   A. Lorenz, Photovoltaic tweezers for optical manipulation in liquid crystals and dielectric fluids, Bunsentagung 2019, Jena (May 30 – June 1, 2019).

38.   F. Jahanbakhsh, L. Wolfram, Z. Gong, S. L. Schafforz, G. Nordendorf, A. Lorenz, Experimental investigations on copolymer network liquid crystals, 46th German Liquid Crystal Conference, Paderborn (March 27 – 29, 2019).

37.   A. Habibpourmoghadam, A. Lorenz, Simulations of localized defect formation in hybridized LC test cells addressed via photovoltaic fields, 46th German Liquid Crystal Conference, Paderborn (March 27 – 29, 2019).

36.   Keynote Presentation: A. Lorenz, Manipulating liquid crystals via photo generated fields and tailored polymer, 5th International Conference on Physical and Theoretical Chemistry, Edinburgh, Scotland (October 11 – 13, 2018). https://www.omicsonline.org/proceedings/manipulating-liquid-crystals-via-photo-generated-fields-and-tailored-polymer-97669.html

35.   Invited: A. Lorenz, Localized defect creation, micromanipulation, and patterning in LCs driven by photovoltaic fields, International Liquid Crystal Conference 2018, Kyoto, Japan (July 22 – 27, 2018).

34.   S. L. Schafforz, A.Habibpourmoghadam, C. Zhang, L. Braun, A. Lorenz, Localized, field induced defect formation and manipulation in hybridized LCs, 45th German Liquid Crystal Conference, Luxemburg, (March 21 – 23, 2018).

32.  INVITED: A. Habibpourmoghadam, L. Jiao, F. Omairatm D. R. Evans, V. Y. Reshetnyak, A. Lorenz, Confined photovoltaic fields in a photo-responsive liquid crystal test cell, SPIE. Optics and Photonics 2017: Liquid Crystals, San Diego, CA, USA (August 6 – 10, 2017).

31.   L. Jiao, A. Habibpourmoghadam, D. R. Evans, V. Y. Reshetnyak, A. Lorenz, Light induced mircomanipulation and defect formation in nematic liquid crystals via photovoltaic fields, Joint Conference of the British and German Liquid Crystal Societies Würzburg, (April 3 – 5, 2017).

30.   INVITED: A. Lorenz, Photopoylmers and Their Uses in Liquid Crystals, Europhotonics Spring School 2017, Sitges, Spain (March 21 – March 24, 2017).

29.  A. Lorenz, D. R. Evans, Photovoltaic LC test cells driven by focused CW laser light, International Liquid Crystal Conference 2016, Kent, OH, USA (July 31 – August 5, 2016).

28.  A. Lorenz, L. Braun, V. Kolosova, Polymer enhanced LCs with continuous optical phase modulation, Joint Conference of the British and German Liquid Crystal Societies Edinburgh, UK (March 21 – 23, 2016).

27.  INVITED: A. Lorenz, Liquid crystals for photonics: Properties, applications, challenges, Europhotonics Spring School 2016, Il de Porquerolles, France (March 29 – April 1, 2016).

26.  INVITED: A. Lorenz, L. Braun, V. Kolosova, R. M. Hyman, T. D. Wilkinson, Continuous phase modulation in polymer-stabilized liquid crystals, SPIE. Photonics West – Opto 2016: Emerging Liquid Crystal Technologies, San Francisco, CA, USA (February 16 – 17, 2016).

25.  INVITED: A. Lorenz, Polymer-enhanced electro-optics in various types of LCs, EMN Meeting on Liquid Crystal, Orlando, FL, USA (February 16 – 19, 2016).

 

24.  A. Lorenz, Continuous electro-optical phase modulation in liquid crystals with added polymer, 13. Convention of the Graduate Program DFG RTG-1464, Paderborn, Germany (November 24 – 25, 2015).

23.  A. Lorenz, Continuous electro-optical phase modulation in liquid crystal polymer composites, NMWP JungakademikerInnen-Symposium: Materialien für die Photonik, Universität Duisburg-Essen, Essen, Germany (September 30, 2015).

22.  INVITED: A. Lorenz, Electro-optics and dielectric measurements in polymer-stabilized liquid crystals of high chirality, IMID 2015: The 15th International Meeting on Information Display, Daegu, Republic of Korea (August 18 – 21, 2015).

21.  A. Lorenz, D. J. Gardiner, R. Hyman, S. M. Morris, T. D. Wilkinson, Electro-optics in fast switching, polymer-stabilized liquid crystals of high chirality, DPG-Frühjahrstagung 2015, Berlin, Germany (March 15 – 20, 2015).

20.  A. Lorenz, R. Hyman, S. M. Morris, T. D. Wilkinson, Induced blue phase in E7: Polymer-stabilization and phase modulation properties, 42nd German Liquid Crystal Conference, Stuttgart, Germany (March 4 – 6, 2015).

19.  INVITED: A. Lorenz, D. J. Gardiner, R. Hyman, T. D. Wilkinson, Polymer-stabilized N* and blue phase liquid crystals: Driving light valves and optical phase modulators, EMN Meeting on Polymer, Orlando, FL, USA (January 7 – 10, 2015).

18.  A. Lorenz, D. J. Gardiner, S. M. Morris, T. D. Wilkinson, Polymer-Stabilized Liquid Crystal Light Modulators with Micopatterned Electrodes, Polydays 2014, Berlin, Germany (September 30 – October 2, 2014).

17.  A. Lorenz, D. M. Agra-Kooijman, N. Zimmermann, H.-S. Kitzerow, D. R. Evans, S. Kumar, Bilayer gelation in nanoparticle-doped nCB-homologues, International Liquid Crystal Conference 2014, Dublin, Ireland (June 29 – July 4, 2014).

16.  S. Morris, D.-H. Ko, A. Lorenz, F. Castles, M. Quasim, D. Gardiner, P. Hands, T. Wilkinson, H. Coles, R. Friend, Nano-patterned photonic crystal lasers with tuneable liquid crystal layers, International Liquid Crystal Conference 2014, Dublin, Ireland (June 29 – July 4, 2014).

15.  A. Lorenz, D. J. Gardiner, S. M. Morris, F. Castles, M. M. Qasim, S. S. Choi, W.-S. Kim, H. J. Coles, T. D. Wilkinson, Electrical addressing of polymer stabilized hyper-twisted chiral nematic liquid crystals with interdigitated electrodes: Experiment and model, 41st Topical Meeting on Liquid Crystals 2014, Magdeburg, Germany (March 25 – 27, 2014).

14.  A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans H.-S. Kitzerow, Nanoparticle induced smectic phase with unusual layer spacing in 4-cyano-4'-pentylbiphenyl and several homologues, 46th Biennial Meeting of the German Colloid Society, Paderborn, Germany (September 23 – 25, 2013).

13.  INVITED: A. Lorenz, X-ray Diffraction: From Fundamentals to Uses in Liquid Crystal Research, I-CAMP•13 Summer School on Liquid Crystals, Cambridge, UK (June 26 – July 6, 2013).

12.  A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook H.-S. Kitzerow, Liquid crystal multilayers adsorbed on nanoparticles with unusual layer spacing in 5CB, British Liquid Crystal Society Annual Meeting, Cambridge, UK (March 25 – 27, 2013).

11.  INVITED: A. Lorenz and H.-S. Kitzerow, Switchable Waveguiding in Photonic Liquid Crystal Microstructures – Glenn Brown Prize Lecture, International Liquid Crystal Conference 2012, Mainz, Germany (August 19 – 24, 2012).

10.  G. Nordendorf, A. Lorenz, A. Hoischen, J. Schmidtke, H. Kitzerow, D. Wilkes, M. Wittek, Hysteresis of the Kerr effect in blue phases, International Liquid Crystal Conference 2012, Mainz, Germany (August 19 – 24, 2012).

9.    H.-S. Kitzerow, A. Lorenz, C. Meier, Liquid crystals and organic / inorganic hybrid systems for functionalized optoelectronic and photonic devices, 1st Europhotonics Spring School, Barcelona, Spain (March 25 – 31, 2012).

8.    A. Lorenz, H.-S. Kitzerow, Polarizing Effects in Switchable Photonic Crystal Fibers, International liquid crystal conference 2010, Krakow, Poland (July 11 – July 16, 2010).

7.    A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Switchable waveguiding in liquid crystal filled photonic crystal fibers, Convention of the DFG Graduate Program 1464, Paderborn, Germany (Mai 27 – 28, 2010).

6.    A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Liquid crystal infiltrated photonic crystal fibers, DPG Frühjahrstagung der Sektion Kondensierte Materie (SKM), Regensburg, Germany (March 21 – 26, 2010).

5.    A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Waveguiding in infiltrated photonic crystal fibers: experiments and liquid crystal scattering model, 38th Topical Meeting on Liquid Crystals, Mainz, Germany (March 10 – 12, 2010).

4.    A. Lorenz, R. Schuhmann, H.-S. Kitzerow, Scattering in liquid crystals and the useful application in switchable waveguides, Convention of DFG Graduate Program 1464, Bad Karlshafen, Germany (November 26 – 27, 2009).

3.    A. Lorenz, H.-S. Kitzerow, Switchable waveguides based on optically anisotropic photonic band gap structures for visible and near infrared light, Convention of DFG Graduate Program 1464, Gehrden, Germany (May, 7 – 8, 2009).

2.    A. Lorenz, H.-S. Kitzerow, Photonic Crystal Fibers filled with Liquid Crystals - Switchable Waveguides in the Visible and Infrared Spectral Region, JCF-Spring symposium (Frühjahrssymposium),Essen, Germany (March, 11 – 14, 2009).

 

1.    A. Lorenz, H.-S. Kitzerow, A. Schwuchow, J. Kobelke, H. Bartelt, Photonic crystal fibers filled with Liquid Crystals, International Liquid Crystal Conference 2008, Jeju Island, Republic of Korea (June 29 – July 4, 2008).

L. Wolfram, V. Reshetnyak, A. Lorenz, Polymer Network Liquid Crystals: Experiments and Simulations, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

S. L. Schafforz, A. Lorenz, Chiral Nematic LCs In Photovoltaic Test Cells As Canvas For Laser Patterning, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

C. Isenberg, E. B. Käkel, T. P. I. Saragi, B. Weber, A. Lorenz, Chiral Nematic LCs In Photovoltaic Test Cells As Canvas For Laser Patterning, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

Z. Gong, A. Lorenz, Polymer-Netzwerk Flüssigkristalle: Messung der dielektrischen Konstante während der Photopolymerisation, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

C. Zhang, A. Lorenz, Manipulation dielektrischer Fluide mit der photovoltaischen Pinzette, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

G. Nordendorf, S. L. Schafforz, E. Käkel, A. Lorenz, Ellipsometric Investigation of Monolayers of Various Benzophenonesilanes, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

F. Jahanbakhsh, A. Lorenz, Switching Properties in Presence of Various Non-Mesogenic Building Blocks in Copolymer Network Liquid Crystals, 46th German Liquid Crystal Conference, Paderborn, (March 27 – 29, 2019).

A. Habibpourmoghadam, L. Wolfram, A. Lorenz, Investigating the Effect of Polymer Network on Diffraction Pattern Characteristics of LC IPS Cells, 45th German Liquid Crystal Conference, Luxemburg, (March 21 – 23, 2018).

A. Lorenz, L. Braun, V. Kolosova, "Nematic copolymer network LCs for swift continuous phase modulation," International Liquid Crystal Conference 2016, Kent, OH, USA, (July 31 – August 5, 2016).

L. Braun, A. Lorenz, "Surface grafted crosslinker in polymer network liquid crystals," Joint Conference of the British and German Liquid Crystal Societies Edinburgh, UK (March 21 – 23, 2016).

A. Lorenz, Dean R. Evans, "Photovoltaic responses of purpose designed liquid crystal test cells," Manfred Eigen Nachwuchswissenschaftlergespräche, Max-Planck-Institute for Chemical Energy Conversion, Mülheim an der Ruhr, Germany, (April 6 – 8, 2016).

A. Lorenz, "Electro-optics in polymer network LC composites – preliminary studies in transparent test cells," Liquid Crystals Gordon Research Conference 2015: Liquid Crystallinity in Soft Matter at and Beyond Equilibrium, Biddeford (ME), USA, (June 21 – 26, 2015).

A. Lorenz, D. M. Agra-Kooijman, D. R. Evans, H.-S. Kitzerow, S. Kumar, "A soft, bilayer phase in nanoparticle-doped n-CB homologues," DPG-Frühjahrstagung 2015, Berlin, Germany, (March 15 – 20, 2015).

R. Hyman, A. Lorenz, S. Morris, T. Wilkinson, "Phase Modulation of Light using a Polymer Stabilised Blue Phase Liquid Crystal," International Liquid Crystal Conference 2014, (Dublin Ireland, June 29 – July 4, 2014).

A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, and H.-S. Kitzerow, "Multilayers with unusual layer spacing in nanoparticle doped 5CB," 40th Topical Meeting on Liquid Crystals 2013, Paderborn (March 20 – 22, 2013).

A. Lorenz, N. Zimmermann, S. Kumar, D. R. Evans, G. Cook, M. Fernández Martínez, N. Theyencheri, and H.-S. Kitzerow, "Doping an eutectic mixture of 8CB and 8OCB with harvested ferroelectric nanoparticles," International Liquid Crystal Conference 2012, Mainz, (August 19 – 24, 2012).

A. Lorenz, H.-S. Kitzerow, "Electro-optic modulators with liquid crystal-filled micro-channels," Frontier of Soft Matter 2012, Boulder CO, USA (May 16 – 18, 2012).

M. Urbanski, M. Wahle, A. Lorenz, C. Meier, H.-S. Kitzerow, "Tunable Photonic Structures using Liquid Crystals," 1st Europhotonics Spring School, Barcelona, Spain (March 25 – 31, 2012).

A. Lorenz, H.-S. Kitzerow, M. A. Schmidt, H. Tyagi, N. Joly,M. Scharrrer, S. Rammler and P. St. J. Russell,"Step-Index Silica Fiber with Parallel Liquid-Crystal-Filled Micro-Channel" 38th Topical Meeting on Liquid Crystals (German Liquid Crystal Conference 2011), Hamburg (March 30 – April 1 2010).

A. Lorenz, R. Schuhmann, H.-S. Kitzerow, "Modal Dispersion of Waveguides with Escaped Radial Director Fields: ARROW-Study Of Tunable Photonic Crystal Fibers," 37th Topical Meeting on Liquid Crystals, Stuttgart (April 1 – 3, 2009).

A. Lorenz, H.-S. Kitzerow, A. Schwuchow, J. Kobelke, H. Bartelt, "Photonic Crystal Fiber with Dual Frequency Response," 37th Topical Meeting on Liquid Crystals, Stuttgart (April 1 – 3, 2009).

A. Lorenz, H.-S. Kitzerow, A. Schwuchow, J. Kobelke, H. Bartelt, "Photonic crystal fibers filled with liquid crystals - fibers with active cladding," KSOP Summer School, Bad Herrenalb (August 20 – 21, 2008).

A. Lorenz, H.-S. Kitzerow, A. Schwuchow, J. Kobelke, H. Bartelt, "Photonic crystal fibers filled with liquid crystals - fibers with active cladding," International Liquid Crystal Conference 2008, Jeju Island Korea (June 29 – July 4, 2008).

A. Lorenz, H.-S. Kitzerow, "Photonic crystal fibers filled with liquid crystals - band gap fibers with active cladding," 36th Topical Meeting on Liquid Crystals, Magdeburg (March 12 – 14, 2008).