Skip to main content
Research

Publications: Dr Flynn Castles

Castles F, Fells JAJ, Isakov D, Morris SM, Watt AAR, Grant PS ( 2020 ) . Active Metamaterials with Negative Static Electric Susceptibility . Advanced Materials1904863 - 1904863 .
Isakov D, Stevens CJ, Castles F, Grant PS ( 2017 ) . A Split Ring Resonator Dielectric Probe for Near-Field Dielectric Imaging . Scientific Reports vol. 7 , ( 1 )
Isakov D, Stevens CJ, Castles F, Grant PS ( 2016 ) . 3D-Printed High Dielectric Contrast Gradient Index Flat Lens for a Directive Antenna with Reduced Dimensions . Advanced Materials Technologies vol. 1 , ( 6 )
Isakov DV, Lei Q, Castles F, Stevens CJ, Grovenor CRM, Grant PS ( 2016 ) . 3D printed anisotropic dielectric composite with meta-material features . Materials and Design vol. 93 , 423 - 430 .
CASTLES F ( 2016 ) . Microwave dielectric characterisation of 3D-printed BaTiO3/ABS polymer composites . Scientific Reports
Wood SM, Castles F, Elston SJ, Morris SM ( 2016 ) . Wavelength-tuneable laser emission from stretchable chiral nematic liquid crystal gels via in situ photopolymerization . RSC Advances vol. 6 , ( 38 ) 31919 - 31924 .
Castles F ( 2015 ) . Linear electro-optic effects due to high-order spatial dispersion . Physical Review A - Atomic, Molecular, and Optical Physics vol. 92 , ( 6 )
Castles F ( 2015 ) . A model for the Pockels effect in distorted liquid crystal blue phases . Applied Physics Letters vol. 107 , ( 10 )
Grant PS, Castles F, Lei Q, Wang Y, Janurudin JM, Isakov D, Speller S, Dancer C et al. ( 2015 ) . Manufacture of electrical and magnetic graded and anisotropic materials for novel manipulations of microwaves . Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences vol. 373 , ( 2049 )
Wang Y, Castles F, Grant PS ( 2015 ) . 3D printing of NiZn ferrite/ABS magnetic composites for electromagnetic devices . Materials Research Society Symposium Proceedings . vol. 1788 , 29 - 35 .
CASTLES F ( 2014 ) . Stretchable liquid-crystal blue-phase gels . Nature Materials vol. 13 , 817 - 821 .
Lorenz A, Gardiner DJ, Morris SM, Castles F, Qasim MM, Choi SS, Kim WS, Coles HJ et al. ( 2014 ) . Electrical addressing of polymer stabilized hyper-twisted chiral nematic liquid crystals with interdigitated electrodes: Experiment and model . Applied Physics Letters vol. 104 , ( 7 )
Wood SM, Mavrogordatos TK, Morris SM, Hands PJW, Castles F, Gardiner DJ, Atkinson KL, Coles HJ et al. ( 2013 ) . Adaptive holographic pumping of thin-film organic lasers . Optics Letters vol. 38 , ( 21 ) 4483 - 4486 .
Morris SM, Qasim MM, Cheng KT, Castles F, Ko DH, Gardiner DJ, Nosheen S, Wilkinson TD et al. ( 2013 ) . Optically activated shutter using a photo-tunable short-pitch chiral nematic liquid crystal . Applied Physics Letters vol. 103 , ( 10 )
Ko DH, Morris SM, Lorenz A, Castles F, Butt H, Gardiner DJ, Qasim MM, Wallikewitz B et al. ( 2013 ) . A nano-patterned photonic crystal laser with a dye-doped liquid crystal . Applied Physics Letters vol. 103 , ( 5 )
Castles F ( 2013 ) . Liquid crystal research highlights . Liquid Crystals Today vol. 22 , ( 1 ) 17 - 18 .
Morris SM, Qasim MM, Gardiner DJ, Hands PJW, Castles F, Tu G, Huck WTS, Friend RH et al. ( 2013 ) . Liquid crystalline chromophores for photonic band-edge laser devices . Optical Materials vol. 35 , ( 5 ) 837 - 842 .
Castles F, Morris SM, Coles HJ ( 2013 ) . Response to "comment on 'The limits of flexoelectricity in liquid crystals'" [AIP Advances 3, 019101 (2013)] . AIP Advances vol. 3 , ( 1 )
Atkinson KL, Morris SM, Qasim MM, Castles F, Gardiner DJ, Hands PJW, Choi SS, Kim WS et al. ( 2012 ) . Increasing the flexoelastic ratio of liquid crystals using highly fluorinated ester-linked bimesogens . Physical Chemistry Chemical Physics vol. 14 , ( 47 ) 16377 - 16385 .
Castles F ( 2012 ) . Liquid crystal research highlights . Liquid Crystals Today vol. 21 , ( 3 ) 74 - 75 .
Castles F ( 2012 ) . Liquid crystal research highlights . Liquid Crystals Today vol. 21 , ( 4 ) 81 - 82 .
Mavrogordatos TK, Morris SM, Castles F, Hands PJW, Ford AD, Coles HJ, Wilkinson TD ( 2012 ) . Density of photon states in dye-doped chiral nematic liquid crystal cells in the presence of losses and gain . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics vol. 86 , ( 1 )
Castles F, Green SC, Gardiner DJ, Morris SM, Coles HJ ( 2012 ) . Flexoelectric coefficient measurements in the nematic liquid crystal phase of 5CB . AIP Advances vol. 2 , ( 2 )
Castles F ( 2012 ) . Liquid crystal research highlights . Liquid Crystals Today vol. 21 , ( 2 ) 49 - 50 .
Gardiner DJ, Morris SM, Hands PJW, Castles F, Qasim MM, Kim WS, Choi SS, Wilkinson TD et al. ( 2012 ) . Spontaneous induction of the uniform lying helix alignment in bimesogenic liquid crystals for the flexoelectro-optic effect . Applied Physics Letters vol. 100 , ( 6 )
Atkinson KL, Morris SM, Castles F, Qasim MM, Gardiner DJ, Coles HJ ( 2012 ) . Flexoelectric and elastic coefficients of odd and even homologous bimesogens . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics vol. 85 , ( 1 )
Castles F, Day FV, Morris SM, Ko DH, Gardiner DJ, Qasim MM, Nosheen S, Hands PJW et al. ( 2012 ) . Blue-phase templated fabrication of three-dimensional nanostructures for photonic applications . Nature Materials vol. 11 , ( 7 ) 599 - 603 .
Castles F ( 2012 ) . Liquid crystal research highlights . Liquid Crystals Today vol. 21 , ( 1 ) 27 - 28 .
Coles H, Morris S, Castles F, Gardiner D, Malik Q ( 2012 ) . Ultrafast high optical contrast flexoelectric displays for video frame rates . Digest of Technical Papers - SID International Symposium . vol. 43 , 544 - 547 .
Morris SM, Gardiner DJ, Castles F, Hands PJW, Wilkinson TD, Coles HJ ( 2011 ) . Fast-switching phase gratings using in-plane addressed short-pitch polymer stabilized chiral nematic liquid crystals . Applied Physics Letters vol. 99 , ( 25 )
Coles HJ, Morris SM, Castles F, Hands PJW, Wilkinson TD, Choi SS ( 2011 ) . Ultrafast switching liquid crystals for electro-optic transmissive and reflective displays and microscopic lasers . Materials Research Society Symposium Proceedings . vol. 1293 , 1 - 12 .
Castles F, Morris SM, Coles HJ ( 2011 ) . The limits of flexoelectricity in liquid crystals . AIP Advances vol. 1 , ( 3 )
Gardiner DJ, Morris SM, Castles F, Qasim MM, Kim WS, Choi SS, Park HJ, Chung IJ et al. ( 2011 ) . Polymer stabilized chiral nematic liquid crystals for fast switching and high contrast electro-optic devices . Applied Physics Letters vol. 98 , ( 26 )
Coles HJ, Morris SM, Castles F, Hands PJW, Wilkinson TD ( 2010 ) . Ultrafast switching liquid crystals for electro-optic transmissive and reflective displays and microscopic lasers . Proceedings of International Meeting on Information Display . 58 - 59 .
Coles HJ, Morris SM, Choi SS, Castles F ( 2010 ) . Ultrafast switching liquid crystals for next-generation transmissive and reflective displays . Proceedings of SPIE - The International Society for Optical Engineering . vol. 7618 ,
Castles F, Morris SM, Terentjev EM, Coles HJ ( 2010 ) . Thermodynamically stable blue phases . Physical Review Letters vol. 104 , ( 15 )
Castles F, Morris SM, Gardiner DJ, Malik QM, Coles HJ ( 2010 ) . Ultra-fast-switching flexoelectric liquid-crystal display with high contrast . Journal of the Society for Information Display vol. 18 , ( 2 ) 128 - 133 .
Choi SS, Castles F, Morris SM, Coles HJ ( 2009 ) . High contrast chiral nematic liquid crystal device using negative dielectric material . Applied Physics Letters vol. 95 , ( 19 )
Castles F, Morris SM, Coles HJ ( 2009 ) . Flexoelectro-optic properties of chiral nematic liquid crystals in the uniform standing helix configuration . Physical Review E - Statistical, Nonlinear, and Soft Matter Physics vol. 80 , ( 3 )
Castles F, Morris SM, Coles HJ ( 2009 ) . Fast-switching flexoelectric display device with high contrast . Digest of Technical Papers - SID International Symposium . vol. 40 , 582 - 585 .
Morris SM, Castles F, Broughton BJ, Coles HJ ( 2007 ) . A comparison of the flexoelectro-optic effect in the uniform lying helix and standing helix geometries . Proceedings of SPIE - The International Society for Optical Engineering . vol. 6587 ,