Recent Publications
The ability of the Small Ice Detector (SID2) to characterise cloud particle and aerosol morphologies obtained during flights of the FAAM BAe146 research aircraft. R. Cotton, S. Osborne, Z. Ulanowski, E. Hirst, P.H. Kaye & R.S. Greenaway. J. Atm. Oceanic Technol. 27, pp.290–303 (2009). DOI
Theoretical determination of the radiation force for a spherical particle illuminated by a focused laser beam. R.R. Dorizzi & Z. Ulanowski. J. Quantit. Spectr. Rad. Transf. 110, pp.1483-1489 (2009). DOI
Application of RTDF to particles with curved surfaces. E. Hesse, D.S. Mc Call, Z. Ulanowski, C. Stopford & P.H. Kaye. J. Quantit. Spectr. Rad. Transf. 110, pp.1599-1603 (2009). DOI
Effect of Charging on Radiative and Transport Properties of Atmospheric Mineral Dust. Z. Ulanowski, O.V. Kalashnikova, P.W. Lucas & B. Bercot. 3rd Dust Workshop, Leipzig, 15-17 September (2008). Abstract
Five papers at 11th Int. Conf. on Electromagnetic & Light Scattering, Hatfield, 7-12 September (2008). Proceedings
The effect of airborne dust on astronomical polarization measurements. J. Bailey, Z. Ulanowski, P.W. Lucas, J.H. Hough, E. Hirst & M. Tamura. Mon. Not. R. Astron. Soc. 386(2), pp.1016-1022 (2008). DOI
Particle identification using light scattering: a global optimization problem. M.C. Bartholomew-Biggs, Z. Ulanowski & S. Zakovic. In: Intelligent Data Analysis: Developing New Methodologies Through Pattern Discovery and Recovery, ed: H.-F. Wang (IGI, Hershey, PA, 2008).
Intrinsic cylindrical and spherical waves. I.K. Ludlow. J. Phys. A: Math. Theor. 41(6), 065401 (2008). DOI
Modelling diffraction during ray-tracing using the concept of energy flow lines. E. Hesse. J. Quantit. Spectr. Rad. Transf. 109(8), pp.1374-1383 (2008). DOI
Alignment of atmospheric mineral dust due to electric field. Z. Ulanowski, J. Bailey, P.W. Lucas, J.H. Hough & E. Hirst. Atm. Chem. Phys. 7(24), pp.6161-6173 (2007). Online copy
Calibration of 2-D imaging probes using calibration beads and ice crystal analogues: the depth of field. P.J. Connolly, M.J. Flynn, Z. Ulanowski, T.W. Choularton, M.W. Gallagher & K.N. Bower. J. Atm. Oceanic Technol. 24(11), pp.1860-1879 (2007). DOI
Investigation of growth kinetics and crystal morphology of sodium fluorosilicate ice-analogue crystals in solution and in gel. M.J. Krasinski, K.R. Krasinska & Z. Ulanowski. Crystal Res. Technol. 42(12), pp.1237-1242 (2007). DOI
Comparision of square and sinusoidal waveform of supply voltage for an alternating electric field charger. M. Lackowski, J.E.J. Dalley, Z. Ulanowski & P.H. Kaye. Electrostatics 2007, Oxford, 25-29 March (2007).
Light scattering by ice crystals modelled using the Ray Tracing with Diffraction on Facets method. E. Hesse, A.J.M. Clarke, Z. Ulanowski & P.H. Kaye. European Geosciences Union General Assembly, Vienna, 15-20 April. In: Geophys. Res. Abstracts 9, 09940 (2007).
Ice nucleation efficiency of mineral dust particles coated with sulphuric acid and secondary organic aerosol mass. O. Möhler, S. Benz, R. Cotton, D. Cziczo, K. Froyd, S. Gallavardin, A. Heymsfield, C. Schmitt, J. Schneider, Z. Ulanowski & S. Walter. 24th IUGG General Assembly, Perugia, 2-13 July (2007).
Characterization of small ice crystals using frequency analysis of azimuthal scattering patterns. Z. Ulanowski, C. Stopford, E. Hesse, P. H. Kaye, E. Hirst & M. Schnaiter. In: Proc. 10th Int. Conf. on Electromagnetic & Light Scattering, Bodrum, 17-22 June, pp.225-228 (2007).
Classification of small ice crystal shapes using Fourier analysis of azimuthal scattering patterns. Z. Ulanowski, C. Stopford, E. Hesse, P.H. Kaye, E. Hirst & M. Schnaiter. Faraday Discussions 137: Spectroscopy and Dynamics of Microparticles, Bristol, 2-4 July (2007).
Astro-biological signatures - prospects for the detection of non-terrestrial biological material. T.M. Gledhill , W.B. Sparks, Z. Ulanowski, J.H. Hough & S. DasSarma. In: Optics of Biological Particles, ed: A. Hoekstra, G. Videen & V. Maltsev (Springer, Dordrecht, 2007). Preprint (0.3 MByte)
Size and shape of ice particles measured during AIDA cloud chamber experiments using Small Ice Detector Mk2. Z. Ulanowski, P.H. Kaye, R. Greenaway, E. Hesse, A.J.M. Clarke & O. Moehler. NCAS Conference 2006, Cambridge (2006). Poster (3.1 MByte)
Light scattering by complex ice-analogue crystals. Z. Ulanowski, E. Hesse, P.H. Kaye & A.J. Baran. J. Quantit. Spectr. Rad. Transf. 100 (1-3), pp.382-392 (2006). DOI, preprint
A 3D implementation of ray tracing combined with diffraction on facets: Verifcation and a potential application. A.J.M. Clarke, E. Hesse, Z. Ulanowski & P.H. Kaye. J. Quantit. Spectr. Rad. Transf. 100 (1-3), pp.103-114 (2006). DOI
Ice analog halos. Z. Ulanowski. Appl. Opt. 44(27), pp.5754-5758 (2005). preprint
Measurements of airborne 3-10 um spherical dielectric particles charged in an AC unipolar charger. J.E.J. Dalley, R. Greenaway, Z. Ulanowski, E. Hesse & P.H. Kaye. J. Aerosol Sci. 36(10), pp.1194-1209 (2005). preprint
Using global optimization for a microparticle identification problem with noisy data. M.C. Bartholomew-Biggs, Z.J. Ulanowski & S. Zakovic. J. Global Optim. 32(3) pp.325-347 (2005). DOI
Single-Particle Raman Spectrometer (SPaRS) for the non-destructive physico-chemical characterisation of aerosol particles. R. Greenaway, J. Dalley, J. Ulanowski & P.H. Kaye. European Aerosol Conference, Ghent, p.289 (2005).
Introducing phase tracing into a computational method which combines ray-tracing with diffraction on facets. E. Hesse, Z. Ulanowski, A.J.M. Clarke, S. Havemann & P.H. Kaye. 8th Int. Conference on Electromagnetic and Light Scattering by Nonspherical Particles, Salobrena, pp.112-115 (2005). Proceedings (18 MBytes)
Light scattering by complex ice-analogue crystals. Z. Ulanowski, E. Hesse, P.H. Kaye & A.J. Baran. 8th Int. Conference on Electromagnetic and Light Scattering by Nonspherical Particles, Salobrena, pp.297-300 (2005). Proceedings (18 MBytes)
A 3D implementation of ray tracing with diffraction on facets compared to SVM and experiment. A.J.M. Clarke, E. Hesse, Z. Ulanowski & P.H. Kaye. 8th Int. Conference on Electromagnetic and Light Scattering by Nonspherical Particles, Salobrena, pp.60-63 (2005). Proceedings (18 MBytes)
A new model of light scattering by ice crystals using ray tracing combined with diffraction on facets. A.J.M. Clarke, E. Hesse, Z. Ulanowski & P.H. Kaye. 16th Aerosol Society Annual Conference, Bristol (2005).
Single-Particle Raman Spectrometer (SPaRS) for the non-destructive physico-chemical characterisation of aerosols. R. Greenaway, J. Dalley, Z. Ulanowski, E. Hesse & P.H. Kaye. 18th International Symposium on Gas Kinetics, Bristol (2004). Poster (4 MBytes)
Using ice crystal analogues to validate cloud ice parameter retrievals from the CPI ice spectrometer data. Z. Ulanowski , P. Connolly, M. Flynn, M. Gallagher, A.J.M. Clarke & E. Hesse. 14th Int. Conf. Clouds Precipit., Bologna, pp.1175-1178 (2004). Poster (6.4 MByte)
Scattering from long prisms: a comparison between ray tracing combined with diffraction on facets and SVM. E. Hesse, Z. Ulanowski & S. Havemann. 7th Int. Conf. on Electromagnetic and Light Scattering by Non-spherical Particles, Bremen, pp. 119-122 (2003).
Scattering of non-uniform incident fields by long cylinders. Z. Ulanowski & E. Hesse. 7th Int. Conf. on Electromagnetic and Light Scattering by Non-spherical Particles, Bremen, pp. 362-365 (2003).
Cirrus clouds in the lab. A.J. Baran & Z. Ulanowski. BBC Radio 4 Material World programme, 22 May 2003. Listen to 15 minute MP3 clip (3.2 Mbyte) or Real Audio clip (requires Real Player)
Fake ice and levitation. Z. Ulanowski & E. Hesse. Planet Earth Spring 2003 (1), pp. 8-9 On-line copy
Scattering from long hexagonal prisms - experimental results and computations using ray tracing combined with diffraction on facets. E. Hesse & Z. Ulanowski. EGS/AGU/EUG Joint Assembly, Nice, April 2003. In: Geophys. Res. Abstr. 5, p.12892 (2003)
Atmospheric ice crystal analogues for light scattering measurements. Z. Ulanowski, E. Hesse, A.J. Baran, P.H. Kaye & I. Tongue. EGS/AGU/EUG Joint Assembly, Nice, April 2003. In: Geophys. Res. Abstr. 5, p.12728 (2003)
Scattering of light from atmospheric ice analogues. Z. Ulanowski, E. Hesse, P.H. Kaye, A.J. Baran & R. Chandrasekhar J. Quantit. Spectr. Rad. Transf. 79-80C, pp.1091-1102 (2003). Preprint
Scattering from long prisms computed using ray tracing combined with diffraction on facets. E. Hesse & Z. Ulanowski J. Quantit. Spectr. Rad. Transf. 79-80C, pp.721-732 (2003). Preprint
Laser diffractometer for single particle scattering measurements. Z. Ulanowski, R.S. Greenaway, P.H. Kaye & I.K. Ludlow Meas. Sci. Technol. 13(3), pp.292-296 (2002).
Stability characteristics of cylindrical fibres in an electrodynamic balance designed for single particle investigation. E. Hesse, Z. Ulanowski & P.H. Kaye. J. Aerosol Sci. 33(1), pp.149-163 (2002).
Scattering from long prisms computed using ray tracing combined with edge diffraction. E. Hesse, Z. Ulanowski & A.J. Baran. 6th Int. Conf. on Electromagnetic and Light Scattering by Non-spherical Particles, Gainesville, pp. 121-124 (2002).
Scattering of light from atmospheric ice analogues. Z. Ulanowski, E. Hesse, P.H. Kaye, A.J. Baran, R. Chandrasekhar & C. Parfitt. 6th Int. Conf. on Electromagnetic and Light Scattering by Non-spherical Particles, Gainesville, pp. 311-314 (2002).
On the asymmetry parameter of ice crystals. A.J. Baran, Z. Ulanowski, E. Hesse, P.H. Kaye & R. Chandrasekhar. 11th AMS Conf. on Atm. Radiation, Ogden, paper J2.1 (2002). abstract
Optical tweezers - principles and applications. Z. Ulanowski. Proc. Roy. Microsc. Soc. 36(1), pp.7-14 (2001). Reprint (5.9 MByte)
Scattering of light from ice crystal analogues. Z. Ulanowski, E. Hesse, P.H. Kaye, A.J. Baran, R. Chandrasekhar & C. Parfitt. Proc. 6th Int. Congress on Optical Particle Characterisation, Brighton, pp.81-82 (2001).
Alignment of cylindrical fibers in an electrodynamic balance designed for single particle investigation. E. Hesse, Z. Ulanowski & P.H. Kaye. Proc. 6th Int. Congress on Optical Particle Characterisation, Brighton, pp.11-12 (2001).
The use of subminiature probes for the determination of the velocity profile of aerosol delivery systems. C.D. Morriss, R.H. Barnard, Z. Ulanowski, P.H. Kaye & E. Hirst. Proc. 12th Annual Conference on Aerosols (The Aerosol Society), pp.124-127 (2001).
Compact optical trapping microscope using a diode laser. Z. Ulanowski and I.K. Ludlow. Meas. Sci. Technol. 11(12), pp.1778-85 (2000).
Scalar field of non-paraxial Gaussian beams. Z. Ulanowski &
I.K. Ludlow. Optics Lett. 25(24), pp.1792-4 (2000).
Animation of beam field (order 01)
Inverse Mie problem. I.K. Ludlow & J. Everitt. J. Optical Soc. Am. A 17(12), pp.2229-35 (2000).
On solving the inverse scattering problem with RBF neural networks: noise-free case. Z. Wang, Z. Ulanowski & P.H. Kaye. Neural Comp. Appl. J. 8(2), pp.177-186 (1999).
Magnetic anisotropy of asbestos fibres. Z. Ulanowski & P.H. Kaye. J. Appl. Physics 84(8), pp.4104-9 (1999).
Application of neural networks to the inverse light scattering problem for spheres. Z. Ulanowski, Z. Wang, P.H. Kaye & I.K. Ludlow. Appl. Optics 37(18), pp.4027-33 (1998).
Application of global optimisation to particle identification using light scattering. S. Zakovic, Z. Ulanowski & M.C. Bartholomew-Biggs. Inverse Problems 14(4), pp.1053-67 (1998).
Spatial light scattering as a means of discriminating hazardous respirable fibres. E. Hirst, Z. Ulanowski, P.H. Kaye & Z. Wang-Thomas. Proc. 5th Int. Congress on Optical Particle Sizing, Minneapolis, pp.233-36 (1998).
Respirable asbestos detection using light scattering and magnetic alignment. Z. Ulanowski, P.H. Kaye & E. Hirst. J. Aerosol Sci. 29(11), pp.S13-S14 (1998).