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Peter Palffy-Muhoray

Professor; Associate Director, LCI

Palffy-Muhoray received his Ph.D. (1977) in Physics from the University of British Columbia. He joined the LCI staff in 1987. He is Professor of Chemical Physics and LCI Associate Director for basic research. His areas of expertise include nonlinear optics, pattern formation, and nonequilibrium phenomena in liquid crystals. 

Scholarly, Creative & Professional Activities
Representative Publications


Books

Dynamics and Defects in Liquid Crystals: A Festschrift for Alfred Saupe, ed. P.E. Cladis and P. Palffy-Muhoray, Gordon and Breach, 1998.

Spatio-Temporal Patterns in Nonequilibrium Complex Systems, ed. P.E. Cladis and P. Palffy-Muhoray, Addison Wesley, 1995.

Contributions to Books

P. Palffy-Muhoray and B. Taheri, ‘Nonlinear Optical Properties of Liquid Crystals’, in Handbook of Liquid Crystals, ed. J.W. Goodby, P. J. Collings, H. Gleeson and P. Raynes (Wiley, 2014).

P. Palffy-Muhoray, "Liquid Crystal Elastomers and Light", in Liquid Crystal Elastomers: Materials and Applications (Springer, 2012), pp. 95-118.

P. Palffy-Muhoray and B. Taheri, ‘Lasing in Cholesteric Liquid Crystals’, in Liquid Crystal Microlasers, ed. L. Blinov and R. Bartolino, (Transworld Research Network, 2010).

P. Palffy-Muhoray, ‘Nonlinear Optical Properties of Liquid Crystals’, in Handbook of Liquid Crystals, ed. D. Demus, J. Goody, G.W. Gray, H-W. Spiess and V. Vill (Wiley, 2008).

P. Palffy-Muhoray, “Nonlinear Optical Properties of Liquid Crystals”, in Physical Properties of Liquid Crystals, ed. D. Demus, J. Goodby, G.W. Gray, H.-W. Spiess, V. Vill (Wiley-VCH, Weinheim, 1999).

P. Palffy-Muhoray, "Z-scan Measurements of Optical Nonlinearities of Liquid Crystals", (invited), in Phase Transitions, ed. A.M. Figueiredo Neto and P. Toledano, (World Scientific, Singapore, 1998).

P. Palffy-Muhoray, B. Bergersen, H. Lin, R.B. Meyer and Z. Racz, “Filaments in Liquid Crystals: Structure and Dynamics”, in Pattern Formation in Complex Dissipative Systems, ed. S. Kai, World Scientific, 1991.

Journals

D. Wenzlik, A. Varanytsia, A. Munoz, T. Kosa, B. Taheri, R. Zentel and P. Palffy-Muhoray, "Distributed feedback lasing in cellulose films", Opt. Mater. Express 4 (1), 162-171 (2014).

S. Relaix, M. Pevnyi, W. Cao and P. Palffy-Muhoray, "Analytic solutions of the normal modes and light transmission of a cholesteric liquid crystal cell", Photon. Res. 1 (1), 58-64 (2013).

P. Palffy-Muhoray, "Comment on “The limits of flexoelectricity in liquid crystals”[AIP Advances 1, 032120 (2011)]", AIP Advances 3 (1), 019101-019101-019103 (2013).

C. Kim, S. Mukherjee, P. Luchette and P. Palffy-Muhoray, "Director Orientation in Deformed Liquid Crystal Elastomer Microparticles", Soft Mater., null-null (2013).

Y. Geng, P. L. Almeida, S. N. Fernandes, C. Cheng, P. Palffy-Muhoray and M. H. Godinho, "A cellulose liquid crystal motor: a steam engine of the second kind", Scientific reports 3 (2013).

X. Zheng, J. Fontana, M. Pevnyi, M. Ignatenko, S. Wang, R. Vaia and P. Palffy-Muhoray, "The effects of nanoparticle shape and orientation on the low frequency dielectric properties of nanocomposites", J. Mater. Sci. - Mater. Electron. 47 (12), 4914-4920 (2012).

N. J. Dawson, M. G. Kuzyk, J. Neal, P. Luchette and P. Palffy-Muhoray, "Integration of liquid crystal elastomer photomechanical optical devices",in SPIE Organic Photonics+ Electronics, edited by I. Khoo (International Society for Optics and Photonics, 2012), Vol. 8475, pp. 84750B-84750B-84758.

A. Agrawal, P. Luchette, P. Palffy-Muhoray, S. L. Biswal, W. G. Chapman and R. Verduzco, "Surface wrinkling in liquid crystal elastomers", Soft Matter 8 (27), 7138-7142 (2012).

W. Zhu, M. Shelley and P. Palffy-Muhoray, "Modeling and simulation of liquid-crystal elastomers", Phys. Rev. E 83 (5), 051703 (2011).

X. Zheng and P. Palffy-Muhoray, "Maier-Saupe theory in four dimensions", Phys. Rev. E 83 (4), 041702 (2011).

X. Zheng and P. Palffy-Muhoray, "One order parameter tensor mean field theory for biaxial liquid crystals", Discrete and Continuous Dynamical Systems-Series B (DCDS-B) 15 (2), 475-490 (2011).

X. Zheng, R. Ennis, G. P. Richards and P. Palffy-Muhoray, "A Plane Sweep Algorithm for the Voronoi Tessellation of the Sphere", electronic-Liquid Crystal Communications [http://e-LC.org] (2011).

T. Hiscock, M. Warner and P. Palffy-Muhoray, "Solar to electrical conversion via liquid crystal elastomers", J. Appl. Phys. 109 (10), 104506-104506-104509 (2011).

N. J. Dawson, M. G. Kuzyk, J. Neal, P. Luchette and P. Palffy-Muhoray, "Modeling the mechanisms of the photomechanical response of a nematic liquid crystal elastomer", JOSA B 28 (9), 2134-2141 (2011).

N. J. Dawson, M. G. Kuzyk, J. Neal, P. Luchette and P. Palffy-Muhoray, "Cascading of liquid crystal elastomer photomechanical optical devices", Optics Communications 284 (4), 991-993 (2011).

N. J. Dawson, M. G. Kuzyk, J. Neal, P. Luchette and P. Palffy-Muhoray, "Experimental studies of the mechanisms of photomechanical effects in a nematic liquid crystal elastomer", JOSA B 28 (8), 1916-1921 (2011).

R. Verduzco, P. Luchette, S. H. Hong, J. Harden, E. DiMasi, P. Palffy-Muhoray, S. M. Kilbey II, S. Sprunt, J. T. Gleeson and A. Jákli, "Bent-core liquid crystal elastomers", J. Mater. Chem. 20 (39), 8488-8495 (2010).

P. Palffy-Muhoray, T. R. Wolinski and S.-T. Wu, "Liquid Crystals for Photonics", Photonics Letters of Poland 2 (3), pp. 100 (2010).

M. F. Moreira, P. Luchette and P. Palffy-Muhoray, "Nonlinear reflection from liquid crystal elastomers", Photonics Letters of Poland 2 (3), pp. 101-103 (2010).

E. Gartland, H. Huang, O. Lavrentovich, P. Palffy-Muhoray, I. Smalyukh, T. Kosa and B. Taheri, "Electric-field induced transitions in a cholesteric liquid-crystal film with negative dielectric anisotropy", Journal of Computational and Theoretical Nanoscience 7 (4), 709-725 (2010).

X. Zheng, W. Iglesias and P. Palffy-Muhoray, "Distance of closest approach of two arbitrary hard ellipsoids", Phys. Rev. E 79 (5), 057702 (2009).

X. Sun, B. A. Garetz, M. F. Moreira and P. Palffy-Muhoray, "Nonphotochemical laser-induced nucleation of nematic phase and alignment of nematic director from a supercooled thermotropic liquid crystal", Physical Review E 79 (2), 021701 (2009).

P. Palffy-Muhoray, "Liquid crystals: Printed actuators in a flap", Nat. Mater. 8 (8), 614-615 (2009).

L. A. Padilha, J. P. Fontana, D. Kohlgraf-Owens, M. F. Moreira, S. Webster, P. Palffy-Muhoray, P. G. Kik, D. J. Hagan and E. W. Van Stryland, "Linear and nonlinear optical response of aligned gold nanorods", 2009 Conference on Lasers and Electro-Optics and Quantum Electronics and Laser Science Conference (Cleo/Qels 2009), Vols 1-5, 2787-2788 (2009).

S. Li, J. S. Lowengrub, J. Fontana and P. Palffy-Muhoray, "Control of viscous fingering patterns in a radial Hele-Shaw cell", Phys. Rev. Lett. 102 (17), 174501 (2009).

A. Haji-Akbari, M. Engel, A. S. Keys, X. Zheng, R. G. Petschek, P. Palffy-Muhoray and S. C. Glotzer, "Disordered, quasicrystalline and crystalline phases of densely packed tetrahedra", Nature 462 (7274), 773-777 (2009).

P. Palffy-Muhoray, "The Diverse World of Liquid Crystals", Physics Today, September 2007.

P. Palffy-Muhoray, Xiaoyu Zheng, "Distance of closest approach of two arbitrary hard ellipses in 2D", Phys. Rev. E 75, 061709 (2007).

R. Verduzco, N. Scruggs, S. Sprunt, P. Palffy-Muhoray, J. Kornfield, "Director Dynamics in Liquid Crystal Physical Gels", Soft Matter, 3, 993-1002 (2007).

P. Palffy-Muhoray, W. Cao, M. Moreira, B. Taheri, A. Munoz, "Photonics and Lasing in Liquid Crystal Materials", Phil. Trans. R. Soc. A, 364, 2747-61 (2006).

R. Ennis, L. Malacarne, P. Palffy-Muhoray, M. Shelley, "Nonlocal model for Nematic Liquid-Crystal Elastomers", Phys Rev. E 75, 061802- (2006).

I. Smalyukh, B. Senyuk, P. Palffy-Muhoray, O.D. Lavrentovich, H. Huang, E.C. Gartland, Jr., V.H. Bodnar, T. Kosa, B. Taheri, "Electric-Field-Induced Nematic-Cholesteric Transition and Three-Dimensional Director Structures in Homeotropic Cells," Phys. Rev. E 72, 061707 (2005).

M. F. Moreira, I.C.S. Carvalho, W. Cao, C. Bailey, B. Taheri and P. Palffy-Muhoray, "Cholesteric Liquid-Crystal Laser as an Optic-Fiber Based Temperature Sensor", App. Phys. Lett. 85, 2691-93, (2004)

P. Palffy-Muhoray, M. Camancho-Lopez., H. Finkelmann and M. Shelley, "Fast Liquid Crystal Elastomer Swins Into the Dark", Nat. Mat. 3, 307-310 (2004).

N. Abraham and P. Palffy-Muhoray, "A Dunking Bird of the Second Kind", Am. J. Phys. 72, 782-785 (2004).

P. Palffy-Muhoray, M. Camacho-Lopez., H. Finkelmann and M. Shelley, “Fast liquid crystal elastomer swims into the dark”, Nature Materials. 3, 307-310 (2004).

M.F. Moreira, I.C.S. Carvalho, W. Cao, C. Bailey, B. Taheri and P. Palffy-Muhoray, “Cholesteric liquid-crystal laser as an optic-fiber based temperature sensor”, App. Phys. Lett. 85, 2691-2693, (2004).

N. Abraham and P. Palffy-Muhoray, “A Dunking Bird of the Second Kind”, Am. J. Phys. 72, 782-785 (2004).

P. Palffy-Muhoray, R. Meyer, “Liquid Crystal Gels: Bridging the experiment-theory gap”, Nature Materials (News & Views), 139-140, March (2004).

W. Cao, A. Muñoz, P. Palffy-Muhoray and B. Taheri, “Lasing in a three-dimensional photonic crystal of the liquid crystal blue phase II”, Nature Materials, 111-113, Oct., (2002).

S. Bardon, D. Coleman, N.A. Clark, T. Kosa, H. Yuan and P. Palffy-Muhoray, “Three dimensional dye distribution in photo-oriented liquid crystal alignment layers”, Europhys. Lett. 58 (1), 67-73, (2002).

P. Palffy-Muhoray, T. Kosa and Weinan E, “Brownian Motors in the Photoalignment of Liquid Crystals”, Appl. Phys. A 75, 293-300 (2002).

P. Palffy-Muhoray, “The Single Particle Potential in Mean Field Theory”, Am. J. Phys. 70, 433-437 (2002).

H. Finkelmann, S.T. Kim, A, Munoz, P. Palffy-Muhoray and B. Taheri, “Tunable Mirrorless Lasing in Cholesteric Liquid Crystalline Elastomers”, Adv. Mat. 1069-1072, 13, (2001).

P. Fast, L. Kondic, M.J. Shelley and P. Palffy-Muhoray, “Pattern Formation in Non-Newtonian Hele-Shaw Flow”, Phys. Fluids 13, 1191-1212 (2001).

A. Munoz F., P. Palffy-Muhoray and B. Taheri, “Ultraviolet lasing in cholesteric liquid crystals”, Opt. Lett. 26, 804-806 (2001).

A. Jakli, T. Kosa, A. Vajda, E. Benkler, I. Janossy, P. Palffy-Muhoray, “Optically induced periodic structures in smectic-C liquid crystals”, Phys. Rev. E: 63, 011705-1 – 011705-4 (2001).

T. Kosa and P. Palffy-Muhoray, “Mirage Mirror on the Wall”, Am. J. Phys. 68, 1120-1122 (2000).

H. Yuan, W. E and P. Palffy-Muhoray, “Analytical solution of Maxwell’s Equations in lossy and optically active crystals”, Phys. Rev. E 61, 3264-3266 (2000).

P. Palffy-Muhoray, A. Munoz, B. Taheri and R. Twieg, “Lasing in Cholesteric Liquid Crystals”, SID 00 Digest, 1170-1173 (2000).

M. Carme Calderer and P. Palffy-Muhoray, "Ericksen's bar and modeling of the smectic A-Nematic phase transition", SIAM J. App. Math. 60, 1073-1098 (2000).

H. Yuan and P. Palffy-Muhoray, “Demonstration of a Waveguide-Based LCD”, SID Digest of Technical Papers, 30, 714-717 (1999).

W. E and P. Palffy-Muhoray, "Dynamics of Filaments during the Isotropic-Smectic A Phase Transition", J. Nonlin. Sci. 9, 417-437 (1999).

H. Yuan, P. Palffy-Muhoray, “Waveguide based liquid crystal display”, Mol. Cryst. Liq. Cryst. 331, 281-288 (1999).

A. Reyes and P. Palffy-Muhoray, "Nonlinear Schrodinger Equation in Nematic Liquid Crystals", Phys. Rev. E 58, 5855-5859 (1998).

P. Palffy-Muhoray, "New Designs in Cholesteric Colour", Nature (News & Views), 391, 745-747 (1998).

L. Kondic, M.J. Shelley and P. Palffy-Muhoray, "Non-Newtonian Hele-Shaw flow, and the Saffman-Taylor instability", Phys. Rev. Lett. 80, 1433-1436 (1998).

L. Bartolo and P. Palffy-Muhoray, “SAM-Net: Connecting Students & Teachers to Scientific Research through Scientific Communication & Electronic Networking”, J. Comp. in Math. and Sci. Teaching 17, 133-147 (1998).

P. Palffy-Muhoray and W. E, "Orientational Ratchets and Angular Momentum Balance in the Janossy Effect", Mol. Cryst. Liq. Cryst. 320, 193-206 (1998).

W. E and P. Palffy-Muhoray, "Domain Size in the Presence of Random Fields", Phys. Rev. E 57, 135-137 (1998).

W. E and P. Palffy-Muhoray, “Phase Separation in Incompressible Systems”, Phys. Rev. E. 55, R3844-R3846 (1997).

J. Kelly and P. Palffy-Muhoray, “Normal Modes of a Radial Nematic Droplet”, Phys. Rev. E. 55, 4378-4381 (1997).

P. Palffy-Muhoray and W. E, “Wavelength Selection in Slowly Quenched Systems”, Mol. Cryst. Liq. Cryst. 292, 345-349 (1997).

L. Kondic, P. Palffy-Muhoray and M.J. Shelley, “On Models of Non-Newtonian Hele-Shaw Flow”, Phys. Rev. E. 54, R4536-R4539 (1996).

T. Kosa and P. Palffy-Muhoray, “Optically Aligned Liquid Crystals: Physics and Applications”, Pure Appl. Opt., 5, 595-602 (1996).

T. Kosa and P. Palffy-Muhoray, “Magnetic Field Induced Deformations in Nematic Liquid Crystals”, Liq. Cryst. Today, 6, 7-9 (1996).

W. Gibbons, T. Kosa, P. Palffy-Muhoray, P.J. Shannon, S.T. Sun, “Continuous Gray-Scale Obtained via Polarized Light Alignment of Nematic Liquid Crystals,” Nature 377, 43-46 (1995).

P. Palffy-Muhoray, and K.D. Singer, “Displays Based on Organic Thin Films,” Opt. Photonics News (invited) 6, 17-22 (1995).

P. Palffy Muhoray, E.C. Gartland, J.R. Kelly, "A New Configurational Transition in Inhomogeneous Nematics," Liq. Cryst. 16(4), 713-718 (1994).

J.R. Kelly, P. Palffy Muhoray, "The Optical Response of Polymer Dispersed Liquid Crystals," Mol. Cryst. Liq. Cryst. 243, 11-29 (1994).

W. Zhao, P. Palffy-Muhoray, "Z-Scan Measurement of ?(3) using Top-Hat Beams," App. Phys. Lett. 65(6), 673-675 (1994).

B. Bergersen, D. Boal, P. Palffy-Muhoray, "Equilibrium Configuration of Particles on a Sphere: the Case of Logarithmic Interactions," J. Phys. A: Math Gen. 2, 2579-2586 (1994).

H. Lin, P. Palffy-Muhoray, "Propagation of TM Modes in a Nonlinear Liquid Crystal Waveguide," Opt. Lett. 19(7), 436-438 (1994).


Presentations at professional meetings and conferences:

Invited Talks (2012-2014)

P. Palffy-Muhoray, Jan. 30, 2014, “Solid Liquid Crystals”, Seminar, Tokyo Institute of Tehnology, Tokyo, Japan.

P. Palffy-Muhoray, Jan. 27, 2014, “Semi-autonomous motion of liquid crystal elastomers”, Workshop on Cross Correlation & Transport Phenomena in Soft Matter, Waseda University, Tokyo, Japan.

P. Palffy-Muhoray, Dec. 9, 2013, “Phase Separation in Liquid Crystals”, EPSCR Symposium on Statistical Mechanics:  Computational coarse-graining of many-body systems, Mathematics Institute, University of Warwick, U.K.

P. Palffy-Muhoray, Sept. 15, 2013, “Modeling Multicomponent Liquid Crystal Systems”, ICAM Workshop: Emergent and Adaptive Behaviors in Soft Matter and Living Systems, Xiamen, China.

P. Palffy-Muhoray, Sept. 14, 2013, “Modeling Multicomponent Liquid Crystal Systems”, Annual Meeting of the Chinese Physical Society, Xiamen, China

P. Palffy-Muhoray, Sept. 14, 2013, “Liquid Crystal Elastomers and Light”, Annual Meeting of the Chinese Physical Society, Xiamen, China

P. Palffy-Muhoray, Sept. 10, 2013, “Nonlinear Reflection from Nematic Liquid Crystal Elastomers”, 7th International Liquid Crystal Conference, Shanghai, China.

P. Palffy-Muhoray, June 28, 2013 “Liquid Crystals and Light”, I-CAMP Summer School on Liquid Crystals, Cambridge, UK

P. Palffy-Muhoray, June 12, 2013 “The Dynamics of Liquid Crystals”, (Plenary), SIAM Conference on Mathematical Aspects of Materials Science, Philadelphia, US

P. Palffy-Muhoray,   March 27, 2013 “Performance Determining Processes in the KDI BoogieBoard LCD e-writer”, Turing Gateway Program, Newton Institute for Mathematical Sciences, Cambridge, UK

P. Palffy-Muhoray, March 26, 2013, (Ben Sturgeon Lecture), “Solid Liquid Crystals”, Annual Meeting of the British Liquid Crystal Society, University of Cambridge, Cambridge, UK

P. Palffy-Muhoray, March 21, 2013, “Modeling Multicomponent Liquid Crystal Systems”, Newton Institute, Cambridge, UK

P. Palffy-Muhoray, March 8, 2013, “Modeling the Dynamics of Liquid Crystalline Systems”, Mathematics Institute, University of Oxford, Oxford, UK

P. Palffy-Muhoray, Jan. 30, 2013 “Soft Motors”, Eindhoven University of Technology, Eindhoven, Netherlands

P. Palffy-Muhoray, Dec.  21, 2012 “Modeling the dynamics of liquid crystalline systems” National Institute for Mathematical Sciences, Daejeon, South Korea

P. Palffy-Muhoray, Dec.  20, 2012 “A brief introduction to liquid crystals” National Institute for Mathematical Sciences, Daejeon, South Korea

P. Palffy-Muhoray,  Dec. 11, 2012, “The Optical Properties of Colloidal Gold Nanorods”,  4th Workshop on Liquid Crystals for Photonics, Hong Kong University of Science and Technology, Hong Kong, China.

P. Palffy-Muhoray, Aug. 22, 2012, “Mesomorphic Metamaterials” (Plenary), 24th International Liquid Crystal Conference, Mainz, Germany.

P. Palffy-Muhoray, Feb. 8, 2012, “Controlling light: from liquid crystals to plasmonic nanoparticles”,   AFOSR/NSF Telluride Workshop on Interfacial Phenomena in Nanostructured Materials and Devices, Telluride, USA

Affiliations

Academic Honors:

  • Fellow, American Physical Society, 2009
  • KSU Inventor Recognition Award, 2004
  • KSU Distinguished Scholar Award, 1999

Other Scholarly  Accomplishments:

  • Special Visiting Researcher, 2014-2017, ‘Science without Borders’ Program of Brazil
  • International Scientific Committee, International Liquid Crystal Conference 2014
  • Regional Editor, Molecular Crystals Liquid Crystals
  • Sr. Editor, Electronic Liquid Crystal Communications, (http://e-LC.org)
  • Board of Directors, International Liquid Crystal Society
  • International Advisory Board, Photonics Letters of Poland

List of Dissertations: (name, title)

Master’s Theses

Stephen. Morris, “Measurements of the elastic constants of a liquid crystal”, (1986)

James T. Gleeson “Surface anchoring of nematic liquid crystas”, (1988),

Dionne Franklin, “Surface anchoring of nematic liquid crystals”, (1996)


PhD. Dissertations

Barbara J. Frisken,   “Nematic liquid crystals in electric and magnetic fields”, (1989)    

James T. Gleeson, “Instabilities during directional solidification of a transparent material”, (1991)

Haiji Yuan, “Nonlinear optical properties of liquid crystals”, (1991)

Jae-Yon  Kim, “Phase separation kinetics of binary liquid crystal-polymer mixtures”, (1992)

Hefen Lin, “Optical Fibers with liquid crystalline cores”, (1993)

Nandana Amarasinghe, “Iterative solutions to the nonlinear wave equation in a x(p2 s) medium and permittivity gradient incuded polarization and second harmonic generation in inhomogenous media”, (1993)

Jianlin Li, “Determination of surface anchoring of nematic liquid crystals from optical response measurements”, (1994)

Gongjian Hu, “Laser induced configurational transitions in liquid crystals”, (1996)

Haijun Yuan, “Light propagation in liquid crystals and liquid crystalline structures”, (2000)

Roland Ennis., “Pattern formation in liquid crystals: the Saffman-Taylor instability and the dynamics of phase separation”, (2004)

Michele Moreira, “Development and characterization of a cholesteric liquid crystal laser system coupled to an optic fiber” (2004)

Wenyi  Cao, “Fluorescence and lasing in liquid crystalline photonic bandgap materials”, (2005)

Jeremy Neal, “Orientationally ordered particles: characterization and applications”,  (2010)

Jacob Fontana, “Self-assembly and characterization of anisotropic metamaterials”,  (2010)

Mykhailo Pevnyi (in progress)

Cheng Cheng (in progress)

Peter Palffy-Muhoray
OFFICE
Department of Chemical Physics
Liquid Crystal Institute
CONTACT INFO
Phone: 330-672-2604
Fax: 330-672-2796
mpalffy@kent.edu