Prof. Helen F. Gleeson Profile

Prof. Helen F. Gleeson

Cavendish Professor of Physics at Univ of Leeds

SPIE Involvement:

Conference Program Committee | Author

Proceedings Article | 1 March 2019 Presentation + Paper

Novel devices with photosensitive elements

Ethan I. Jull, Helen Gleeson

Proceedings Volume 10941, 109410C (2019) https://doi.org/10.1117/12.2515807

KEYWORDS: Liquid crystals, Switches, Polarizers, Absorption, Molecules, Birefringence, Switching, Laser irradiation, Polarization

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Proceedings Article | 16 September 2016 Presentation + Paper

Understanding local forces in electrophoretic ink systems: utilizing optical tweezers to explore electrophoretic display devices

David Wei, Mark Dickinson, N. Smith, Helen Gleeson

Proceedings Volume 9922, 99221D (2016) https://doi.org/10.1117/12.2237675

KEYWORDS: Particles, Optical tweezers, Reflectivity, Physics, Particle systems, Electrodes, Optical trapping, Dielectrophoresis, Motion analysis, Objectives

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Proceedings Article | 19 February 2014 Paper

Switchable liquid crystal contact lenses: dynamic vision for the ageing eye

Harry Milton, Helen Gleeson, Philip Morgan, John Goodby, Stephen Cowling, John Clamp

Proceedings Volume 9004, 90040H (2014) https://doi.org/10.1117/12.2044676

KEYWORDS: Liquid crystals, Contact lenses, Lenses, Refractive index, Eye, Birefringence, Absorption, Eyeglasses, Glasses, Gradient-index optics

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Proceedings Article | 19 February 2014 Paper

Twisting and tweezing liquid crystals with lasers

Helen Gleeson, Mark Dickinson, Jennifer Sanders, Yiming Yang

Proceedings Volume 9004, 900406 (2014) https://doi.org/10.1117/12.2044247

KEYWORDS: Liquid crystals, Particles, Optical tweezers, Crystals, Liquids, Laser crystals, Refractive index, Polarization, Liquid crystal lasers, Nonlinear crystals

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Proceedings Article | 28 August 2010 Paper

Laser tweezers for determining anisotropic viscosity coefficients of nematic liquid crystals

Jennifer Sanders, Mark Dickinson, Helen Gleeson

Proceedings Volume 7762, 776221 (2010) https://doi.org/10.1117/12.862853

KEYWORDS: Liquid crystals, Optical tweezers, Particles, Calibration, CMOS cameras, Dielectrics, Microfluidics, Microscopes, Particle systems, Refractive index

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Proceedings Article | 28 May 2002 Paper

Investigation of the factors affecting the transverse force measurements of an optical trap: II

Amanda Wright, Tiffany Wood, Mark Dickinson, Helen Gleeson, Tom Mullin, Andrew Murray

Proceedings Volume 4622, (2002) https://doi.org/10.1117/12.468344

KEYWORDS: Particles, Optical spheres, Optical tweezers, Microfluidics, Fluid dynamics, Optical testing, Refractive index, Microscopes, Beam splitters, Solids

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Proceedings Article | 28 March 2002 Paper

Factors affecting the transverse force measurements of an optical trap: I

Tiffany Wood, Amanda Wright, Helen Gleeson, Mark Dickenson, Tom Mullin, Andrew Murray

Proceedings Volume 4634, (2002) https://doi.org/10.1117/12.463827

KEYWORDS: Particles, Optical tweezers, Optical spheres, Monochromatic aberrations, Microfluidics, Optical testing, Microscopes, Transducers, Solids, Distortion

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