Electronic Copies of Many of the Publications Listed in This Document Are Available At

Electronic copies of many of the publications listed in this document are available at the University of Hertfordshire research archive.

Modelling Diffraction by Facetted Particles. E. Hesse, A. Macke, S. Havemann, A.J. Baran, Z. Ulanowski & P.H. Kaye. J. Quantit. Spectr. Rad. Transf. 113 (5), pp. 342–347 (2012). DOI, article

First correlated measurements of the shape and scattering properties of cloud particles using the new Particle Habit Imaging and Polar Scattering (PHIPS) probe. A. Abdelmonem, M. Schnaiter, P. Amsler, E. Hesse, J. Meyer, & T. Leisner. Atmos. Meas. Tech. 4, pp.2125-2142 (2011). Article, DOI

Retrieving the size of particles with rough surfaces from 2D scattering patterns. Z.Ulanowski, E.Hirst, P.H.Kaye & R.S.Greenaway. 13th Int. Conference on Electromagnetic & Light Scattering. In: Atti Accad. Pelorit. Pericol. Cl. Sci. Fis. Mat. Nat. 89, Suppl. 1, C1V89S1P087 (2011). Article, DOI

Exploring the surface roughness of small ice crystals by measuring high resolution angular scattering patterns M.Schnaiter, E.Hirst, P.H.Kaye, Z.Ulanowski & R.Wagner. 13th Int. Conference on Electromagnetic & Light Scattering. In: Atti Accad. Pelorit. Pericol. Cl. Sci. Fis. Mat. Nat. 89, Suppl. 1, C1V89S1P084 (2011). Article, DOI

Short-wave and long-wave radiative properties of Saharan dust aerosol. S. R. Osborne, A. J. Baran, B. T. Johnson, J. M. Haywood, E. Hesse & S. Newman. Q. J. Roy. Meteorol. Soc. 137, pp.1149–1167 (2011). DOI

UV and visible light scattering and absorption measurements on aerosols in the laboratory. Z. Ulanowski & M. Schnaiter. In: Fundamentals and Applications of Aerosol Spectroscopy, pp. 243-268, ed: J. P. Reid & R. Signorell (CRC Press, Boca Raton, 2011).

Particle habit imaging using incoherent light: a first step towards a novel instrument for cloud microphysics. R. Schön, M. Schnaiter, Z. Ulanowski, S. Benz, O. Möhler, S. Vogt, R. Wagner & U. Schurath. J. Atm. Oceanic Technol. 28, pp.493-512 (2011). DOI

Observations of Saharan dust layer electrification. K.A. Nicoll, R.G. Harrison & Z. Ulanowski. Env. Res. Lett. 6, 014001 (2011). Article

Polarized optical scattering signatures from biological materials. W. E.Martin, E. Hesse, J. H. Hough, W. B. Sparks, C. S. Cockell, Z. Ulanowski, T. A. Germer & P.H. Kaye. J. Quantit. Spectr. Rad. Transf. 111, pp.2444-2459 (2010). DOI

Atmospheric dust charging, vertical profiles and optical properties measured in the Arabian Peninsula during the DREAME campaign. Z. Ulanowski, I. Sabbah, R.G. Harrison, K.A. Nicoll, E. Hirst, P.H. Kaye, N. Al-Abbadi & G. Rogers. EGU General Assembly, Vienna, 2–7 May. In: Geophys. Res. Abstracts 12, EGU2010-13473 (2010). Abstract

Radiosonde aerosol counter for vertical profiling of atmospheric dust. Z. Ulanowski, E. Hirst, P.H. Kaye, R.G. Harrison, K.A. Nicoll & G. Rogers. EGU General Assembly, Vienna, 2–7 May. In: Geophys. Res. Abstracts 12, EGU2010-13512 (2010). Abstract

Measurements of atmospheric volcanic dust using an aerosol radiosonde. Z. Ulanowski, R.G. Harrison & K.A. Nicoll. EGU General Assembly, Vienna, 2–7 May. In: Geophys. Res. Abstracts 12, EGU2010-15757 (2010). Abstract

Charge measurements within a Saharan dust layer using balloon-carried sensors. K. A. Nicoll, Z. Ulanowski & R.G. Harrison. EGU General Assembly, Vienna, 2–7 May. In: Geophys. Res. Abstracts 12, EGU2010-4727 (2010). Abstract

Intercomparison of the performance of three different versions of Cloud Particle Imagers (CPIs). J. Um, G.M. McFarquhar, P.J. Connolly, C. Emersic, Z. Ulanowski & M. Gallagher. 13th Conf. Cloud Physics, 28 June – 2 July, Portland, Oregon (2010).

Light scattering by ice particles in the Earth's atmosphere and related laboratory measurements. Z.Ulanowski, E.Hirst, P.H.Kaye & R.S.Greenaway. 12th Int. Conference on Electromagnetic & Light Scattering, Helsinki, pp. 294-297 (2010). Abstract

Measurements of circular depolarization of light scattered from single ice particles. A. Kiselev, T. Clauss, P.H. Kaye, E. Hirst, R. Greenaway, Z. Ulanowski, E. Hesse & M. Schnaiter. 12th Int. Conference on Electromagnetic & Light Scattering, Helsinki, pp. 94-97 (2010). Abstract

Self-charging of the Eyjafjallajökull volcanic ash plume. R.G. Harrison, K.A. Nicoll, Z. Ulanowski & T.A. Mather. Env. Res. Lett. 5, 024004 (2010). Article

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

Classifying atmospheric ice crystals by spatial light scattering. P.H. Kaye, E. Hirst, R. S. Greenaway, Z. Ulanowski, E. Hesse, P.J. DeMott, C. Saunders & P. Connolly, Optics Letters 33, 13, 1545 (2008). Preprint

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

Six papers at 11th Int. Conf. on Electromagnetic & Light Scattering, Hatfield, 7-12 September (2008):
Investigation into Single Scattering Properties of Airborne Saharan Dust Particles. D.S. McCall, Z. Ulanowski, E. Hesse, C. Stopford, K. Kandler & P.H. Kaye, p.129.
Influence of Alignment on the Scattering Properties Atmospheric Mineral Dust. Z. Ulanowski, O.V. Kalashnikova, P.W. Lucas & B. Berçot, p.145.
Application of RTDF to particles with curved surfaces. E. Hesse, D.S. Mc Call, Z. Ulanowski, C. Stopford & P.H. Kaye, p.231.
A light scattering instrument for investigating cloud ice microcrystal morphology. P.H. Kaye, E. Hirst, Z. Ulanowski, E. Hesse, R. Greenaway & P. DeMott, p.235.
Initial investigation into using Fourier spectra as a means of classifying ice crystal shapes. C. Stopford, Z. Ulanowski, E. Hesse, P.H. Kaye, E. Hirst, M. Schnaiter & D. McCall, p.247.
Theoretical determination of the radiation force for a spherical particle illuminated by a focused laser beam. R.R. Dorizzi & Z. Ulanowski, p.307.
See conference Proceedings (30MB) for extended abstracts.

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). Article

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. BBCRadio4Material 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)