Prof. Damien P. Kelly Profile

Prof. Damien P. Kelly

at Institute for laser and medicine technology

SPIE Involvement:

Conference Program Committee | Author

Publications (35)

Proceedings Article | 7 April 2024 Poster

A digital holographic system for measuring bacterial growth in micro-fluidic chambers

Hussein Kamel, Julian Schmid, Moaaz Nizami, Igor Alekseenko, Florian Hausladen, Daniel Claus, Rainer Wittig, Damien Kelly

Proceedings Volume 12997, 129971G (2024) https://doi.org/10.1117/12.3022355

KEYWORDS: Digital holography, Holography, Vacuum chambers, Biological research, Bacteria, Phase measurement, Spatial filtering, Signal processing, Phase imaging, Microscopy

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Proceedings Article | 1 May 2017 Presentation + Paper

Temporal speckle correlations for optical alignment

Florian Schurig, Damien Kelly

Proceedings Volume 10220, 102200F (2017) https://doi.org/10.1117/12.2262489

KEYWORDS: Diffusers, Scattering, Statistical analysis, Light scattering, Laser scattering, Laser optics, Speckle, Optical alignment, Speckle pattern, 3D metrology, Optical inspection, Inspection

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Proceedings Article | 1 May 2017 Presentation + Paper

Measuring optical phase digitally in coherent metrology systems

Damien Kelly, James Ryle, Liang Zhao, John Sheridan

Proceedings Volume 10220, 102200B (2017) https://doi.org/10.1117/12.2262485

KEYWORDS: Fourier transforms, Charge-coupled devices, Geometrical optics, Transform theory, Reconstruction algorithms, Digital holography, Metrology, Phase retrieval, Speckle metrology, Phase measurement, Optical testing, Refractive index, Biological research, Paraxial approximations, Holography

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Proceedings Article | 1 June 2016 Paper

Space/time averaging of scattered coherence functions

Damien Kelly

Proceedings Volume 9867, 98670F (2016) https://doi.org/10.1117/12.2241135

KEYWORDS: Electroluminescent displays, Speckle, Sensors, Geometrical optics, Statistical analysis, Transform theory, Remote sensing, 3D metrology, Wave propagation, Charge-coupled devices

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SPIE Journal Paper | 28 March 2016

Iterative reconstruction of digital holograms from three intensity measurements

Liang Zhao, Yang Wu, Damien Kelly, John Sheridan

OE, Vol. 55, Issue 03, 033106, (March 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.3.033106

KEYWORDS: Digital holography, Phase retrieval, Holograms, Cameras, Image quality, Reconstruction algorithms, Phase shift keying, Wavefronts, Optical engineering, Modulation

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Proceedings Article | 22 September 2015 Paper

Reconstruction of digital holograms from three intensity measurements

Liang Zhao, Yang Wu, Chang-liang Guo, Damien Kelly, John Sheridan

Proceedings Volume 9599, 95992U (2015) https://doi.org/10.1117/12.2189474

KEYWORDS: Phase retrieval, Fourier transforms, Cameras, Digital holography, Image retrieval, Holograms, Reconstruction algorithms, Detection and tracking algorithms, Phase shifts, Image enhancement

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Proceedings Article | 9 September 2015 Paper

Measuring refractive index of glass by using two captures under speckle field illumination

Changliang Guo, Dayan Li, Damien Kelly, John Sheridan

Proceedings Volume 9598, 95980M (2015) https://doi.org/10.1117/12.2186306

KEYWORDS: Glasses, Refractive index, Speckle, Diffusers, Statistical analysis, Diffraction, Charge-coupled devices, Speckle pattern, Free space optics, Metrology

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Proceedings Article | 5 June 2014 Paper

Fluctuations in the intensity read out of CCD/CMOS arrays in digital holographic setups: an experimental investigation

Yang Wu, Damien Kelly, Adrian Stern, Stefan Sinzinger

Proceedings Volume 9117, 911708 (2014) https://doi.org/10.1117/12.2051206

KEYWORDS: Cameras, Speckle, Digital holography, Holography, Holograms, Charge-coupled devices, CCD cameras, Optical benches, Sensors, Light sources

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Proceedings Article | 30 September 2013 Paper

A theoretical comparison of Fresnel based digital holography and phase retrieval from the transport of intensity equation

Damien Kelly, Lysann Megel, Thomas Meinecke, Stefan Sinzinger

Proceedings Volume 8833, 88330G (2013) https://doi.org/10.1117/12.2024855

KEYWORDS: Charge-coupled devices, Spatial frequencies, Digital holography, Phase retrieval, Phase measurement, Imaging systems, Fourier transforms, Electroluminescent displays, Holography, Wave plates

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Proceedings Article | 5 May 2012 Paper

Speckle: two new metrology techniques

Dayan Li, Raoul Kirner, Damien Kelly, John Sheridan

Proceedings Volume 8429, 84290X (2012) https://doi.org/10.1117/12.922493

KEYWORDS: Diffusers, Speckle, Glasses, Refractive index, Metrology, Cameras, Statistical analysis, Speckle pattern, Light scattering, Free space

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Proceedings Article | 14 September 2011 Paper

Experimental exploration of the correlation coefficient of static speckles in Fresnel configuration

Dayan Li, Damien Kelly, John Sheridan

Proceedings Volume 8133, 813310 (2011) https://doi.org/10.1117/12.895541

KEYWORDS: Speckle, Cameras, Correlation function, Speckle pattern, Gaussian beams, Diffusers, 3D metrology, 3D modeling, Imaging systems, Statistical analysis

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Proceedings Article | 11 May 2011 Paper

Digital holography and phase retrieval: a theoretical investigation

Damien Kelly, Thomas Meinecke, Nail Sabitov, Stefan Sinzinger, John Sheridan

Proceedings Volume 8074, 80740C (2011) https://doi.org/10.1117/12.892010

KEYWORDS: Digital holography, Cameras, Holograms, Phase retrieval, Fourier transforms, Spatial frequencies, Holography, Reconstruction algorithms, 3D image reconstruction, Imaging systems

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SPIE Journal Paper | 1 September 2009

Resolution limits in practical digital holographic systems

Damien Kelly, Bryan Hennelly, Nitesh Pandey, Thomas Naughton, William Rhodes

OE, Vol. 48, Issue 09, 095801, (September 2009) https://doi.org/10.1117/12.10.1117/1.3212678

KEYWORDS: Cameras, Digital holography, Imaging systems, Spatial frequencies, Holograms, Holography, Optical engineering, 3D image reconstruction, Image resolution, Systems modeling

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Proceedings Article | 27 August 2009 Paper

Speed up of Fresnel transforms for digital holography using pre-computed chirp and GPU processing

Nitesh Pandey, Damien Kelly, Thomas Naughton, Bryan Hennelly

Proceedings Volume 7442, 744205 (2009) https://doi.org/10.1117/12.830587

KEYWORDS: Digital holography, Holograms, Quantization, 3D image reconstruction, Reconstruction algorithms, Transform theory, Matrices, Cameras, Graphics processing units, Holography

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SPIE Journal Paper | 1 February 2009

Systematic errors of an optical encryption system due to the discrete values of a spatial light modulator

David Monaghan, Unnikrishnan Gopinathan, Damien Kelly, Thomas Naughton, John Sheridan

OE, Vol. 48, Issue 02, 027001, (February 2009) https://doi.org/10.1117/12.10.1117/1.3076208

KEYWORDS: Spatial light modulators, Image encryption, Quantization, Fourier transforms, Positron emission tomography, Image processing, Computer programming, Polarization, Optical engineering, Error analysis

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Proceedings Article | 3 September 2008 Paper

A practical guide to digital holography and generalized sampling

D. Kelly, B. Hennelly, C. McElhinney, T. Naughton

Proceedings Volume 7072, 707215 (2008) https://doi.org/10.1117/12.795904

KEYWORDS: Cameras, Digital holography, Spatial frequencies, Holography, Fourier transforms, Holograms, Reconstruction algorithms, Image quality, 3D image reconstruction, Imaging systems

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Proceedings Article | 2 September 2008 Paper

An alignment technique based on the speckle correlation properties of Fresnel transforming optical systems

Jennifer Ward, Damien Kelly, John Sheridan

Proceedings Volume 7068, 70680L (2008) https://doi.org/10.1117/12.795722

KEYWORDS: Speckle, Cameras, Optical alignment, Signal to noise ratio, Free space optics, Channel projecting optics, Free space, Digital cameras, Statistical analysis, Error analysis

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Proceedings Article | 14 February 2008 Paper

Advances in fiber delivery of ultrashort pulses at 800 nm

T. Le, M. Hofer, Z. Cheng, A. Stingl, J. Darmo, D. Kelly, K. Unterrainer

Proceedings Volume 6871, 68712C (2008) https://doi.org/10.1117/12.763150

KEYWORDS: Prisms, Dispersion, Mirrors, Terahertz radiation, Ultrafast phenomena, Fiber lasers, Photonic crystal fibers, Single mode fibers, Sapphire lasers, Femtosecond phenomena

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Proceedings Article | 25 September 2007 Paper

Fast numerical algorithm for ultrashort THz pulse diffraction

Damien Kelly, Bryan Hennelly, Alexander Grün, Juraj Darmo, Karl Unterrainer

Proceedings Volume 6697, 66970Q (2007) https://doi.org/10.1117/12.735531

KEYWORDS: Diffraction, Terahertz radiation, Fourier transforms, Ultrafast phenomena, Error analysis, Spectroscopy, Near field diffraction, Gaussian pulse, Numerical analysis, Confocal microscopy

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Proceedings Article | 24 September 2007 Paper

Speckle reduction from digital holograms by simulating temporal incoherence

B. Hennelly, D. Kelly, J. Maycock, T. Naughton, J. McDonald

Proceedings Volume 6696, 66961I (2007) https://doi.org/10.1117/12.739492

KEYWORDS: Speckle, Digital holography, Holograms, 3D image reconstruction, Charge-coupled devices, Optical simulations, Fourier transforms, Holography, Computer simulations, Imaging systems

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Proceedings Article | 14 August 2006 Paper

Speckle photography: linear canonical transform metrology systems in mixed domains with apertures

Jennifer Ward, Damien Kelly, Bryan Hennelly, Robert Patten, John Sheridan

Proceedings Volume 6292, 62920W (2006) https://doi.org/10.1117/12.680761

KEYWORDS: Speckle, Cameras, Imaging systems, Metrology, Fourier transforms, Photography, Free space optics, Control systems, Lenses, Free space

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SPIE Journal Paper | 1 August 2006

Analytical and numerical analysis of linear optical systems

Damien Kelly, Bryan Hennelly, William Rhodes, John Sheridan

OE, Vol. 45, Issue 08, 088201, (August 2006) https://doi.org/10.1117/12.10.1117/1.2345070

KEYWORDS: Numerical analysis, Wigner distribution functions, Spatial frequencies, Diffraction, Optical engineering, Fourier transforms, Direct methods, Systems modeling, Algorithm development, Fractional fourier transform

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Proceedings Article | 25 April 2006 Paper

Numerical analysis of systematic errors in an optical encryption system

David Monaghan, Unnikrishnan Gopinathan, Damien Kelly, Thomas Naughton, John Sheridan

Proceedings Volume 6187, 61870X (2006) https://doi.org/10.1117/12.663063

KEYWORDS: Spatial light modulators, Image encryption, Computer programming, Image processing, Digital holography, Modulation, Jones vectors, Quantization, CCD cameras, Fourier transforms

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Proceedings Article | 25 April 2006 Paper

Speckle-based metrology systems and linear canonical transform photography in mixed domains

Jennifer Ward, Damien Kelly, Robert Patten, Bryan Hennelly, Ying Liu, John Sheridan

Proceedings Volume 6187, 61870W (2006) https://doi.org/10.1117/12.663037

KEYWORDS: Speckle, Metrology, Motion measurement, Wavefronts, Spherical lenses, Photography, Optical components, Free space optics, Fourier transforms, Charge-coupled devices

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Proceedings Article | 15 September 2005 Paper

Phase retrieval using theoretically unitary discrete fractional Fourier transform

B. Hennelly, D. Kelly, A. Corballis, J. Sheridan

Proceedings Volume 5908, 59080D (2005) https://doi.org/10.1117/12.617842

KEYWORDS: Fourier transforms, Wigner distribution functions, Amplifiers, Phase retrieval, Detection and tracking algorithms, Fractional fourier transform, Signal processing, Algorithm development, Matrices, Spatial frequencies

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Proceedings Article | 10 September 2005 Paper

Numerical implementation of the Fresnel transform, and its application in linear optical systems

D. Kelly, B. Hennelly, W. Rhodes, J. Sheridan

Proceedings Volume 5908, 59080F (2005) https://doi.org/10.1117/12.617425

KEYWORDS: Wigner distribution functions, Spatial frequencies, Numerical analysis, Fractional fourier transform, Diffraction, Algorithm development, Free space, Modulation, Fourier transforms, Free space optics

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Proceedings Article | 18 August 2005 Paper

Linear Canonical Transforms, and Speckle Based Metrology

Damien Kelly, Robert Patten, Bryan Hennelly, Ying Liu, Jennifer Ward, John Sheridan

Proceedings Volume 5879, 58790O (2005) https://doi.org/10.1117/12.617465

KEYWORDS: Transform theory, Speckle, Wavefronts, Metrology, Spherical lenses, Motion measurement, Matrices, Digital photography, Digital signal processing, Fourier transforms

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Proceedings Article | 8 June 2005 Paper

Scaled optical Fourier transform in cylindrical coordinates

Damien Kelly, John Sheridan, William Rhodes

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.604995

KEYWORDS: Spherical lenses, Seaborgium, Diffraction, Fourier transforms, Wave propagation, Optical signal processing, Plasma display panels, Wavefronts, Electronics engineering, Visualization

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Proceedings Article | 8 June 2005 Paper

Applications of spatial light modulators in optical signal processing systems

D. Monaghan, U. Gopinathan, B. Hennelly, D. Kelly, Thomas Naughton, John Sheridan

Proceedings Volume 5827, (2005) https://doi.org/10.1117/12.605003

KEYWORDS: Spatial light modulators, Image encryption, Quantization, Optical signal processing, Transform theory, Wigner distribution functions, Signal processing, Digital holography, Data processing, Free space

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Proceedings Article | 3 June 2005 Paper

Linear canonical transforms and speckle based metrology

Ying Liu, Damien Kelly, Bryan Hennelly, Jennifer Ward, Robert Patten, John Sheridan

Proceedings Volume 5826, (2005) https://doi.org/10.1117/12.604996

KEYWORDS: Speckle, Metrology, Motion measurement, Transform theory, Free space, Fourier transforms, Free space optics, Systems modeling, Surface plasmons, Photography

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Proceedings Article | 22 October 2004 Paper

Speckle correlation and the fractional Fourier transform

Damien Kelly, Bryan Hennelly, John Sheridan

Proceedings Volume 5557, (2004) https://doi.org/10.1117/12.560489

KEYWORDS: Motion measurement, Speckle, Metrology, Fractional fourier transform, Fourier transforms, Cameras, Commercial off the shelf technology, Photography, Imaging systems, Free space optics

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Proceedings Article | 22 October 2004 Paper

3D scaled optical Fourier transform: diffraction effects

Damien Kelly, John Sheridan, William Rhodes

Proceedings Volume 5557, (2004) https://doi.org/10.1117/12.560574

KEYWORDS: Seaborgium, Fourier transforms, Diffraction, Spherical lenses, Optical signal processing, Plasma display panels, Electronics engineering, Fourier optics, Electrical engineering, Computer architecture

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Proceedings Article | 1 September 2004 Paper

Considering the effect of diffraction on the scaled optical Fourier transform

Damien Kelly, John Sheridan, William Rhodes

Proceedings Volume 5456, (2004) https://doi.org/10.1117/12.553305

KEYWORDS: Seaborgium, Fourier transforms, Diffraction, Spherical lenses, Optical signal processing, Error analysis, Algorithm development, Electronics engineering, Wave propagation, Solids

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Proceedings Article | 31 December 2003 Paper

Scaled optical Fourier transform: practical limitations

Damien Kelly, John Sheridan, William Rhodes

Proceedings Volume 5182, (2003) https://doi.org/10.1117/12.509134

KEYWORDS: Fourier transforms, Diffraction, Spherical lenses, Error analysis, Optical signal processing, Algorithm development, Visualization, Illumination engineering, Solids, Electronics engineering

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Proceedings Article | 31 December 2003 Paper

Wigner optics and wave optics: fundamentals and practical applications

John Sheridan, Bryan Hennelly, Damien Kelly

Proceedings Volume 5182, (2003) https://doi.org/10.1117/12.509133

KEYWORDS: Wigner distribution functions, Speckle, Differential equations, Paraxial approximations, Integral transforms, Photography, Motion measurement, Holographic interferometry, Fourier transforms, Lead

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