Dr. Michael J. O'Callaghan Profile

Dr. Michael J. O'Callaghan

Director of Research at Displaytech Inc

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Publications (11)

Proceedings Article | 22 June 2006 Paper

Spatial light modulators with integrated phase masks for holographic data storage

Michael O'Callaghan, John McNeil, Chris Walker, Mark Handschy

Proceedings Volume 6282, 628208 (2006) https://doi.org/10.1117/12.685167

KEYWORDS: Spatial light modulators, Photomasks, Binary data, Data storage, Fourier transforms, Glasses, Holography, Very large scale integration, Lenses, CCD cameras

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Proceedings Article | 17 June 2004 Paper

Sorting through the lore of phase mask options: performance measures and practical commercial designs

Michael O'Callaghan

Proceedings Volume 5362, (2004) https://doi.org/10.1117/12.529854

KEYWORDS: Spatial light modulators, Axicons, Data storage, Fourier transforms, Binary data, Cameras, Phase shift keying, Systems modeling, Data modeling, Spatial frequencies

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Proceedings Article | 8 November 2001 Paper

Ferroelectric liquid crystal SLMs: from prototypes to products

Michael O'Callaghan, Mark Handschy

Proceedings Volume 4457, (2001) https://doi.org/10.1117/12.447758

KEYWORDS: Spatial light modulators, Manufacturing, Very large scale integration, Prototyping, Semiconducting wafers, Active optics, Data storage, Molecules, Switching, Holography

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Proceedings Article | 24 May 2000 Paper

Influence of SLM pixel size and shape on the performance of optical correlators and optical memories

Michael O'Callaghan

Proceedings Volume 4089, (2000) https://doi.org/10.1117/12.386832

KEYWORDS: Spatial light modulators, Optical correlators, Fourier transforms, Optical storage, Cameras, Optical filters, Convolution, Image processing, Image filtering, Imaging systems

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Proceedings Article | 31 March 2000 Paper

Single-chip correlator implementation for PCI-bus personal computers

Michael O'Callaghan, Stephen Perlmutter, Barry Wolt

Proceedings Volume 4043, (2000) https://doi.org/10.1117/12.381618

KEYWORDS: Spatial light modulators, Optical correlators, Analog electronics, Image filtering, Computing systems, Imaging systems, Prototyping, Cameras, Optical filters, Modulation

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Proceedings Article | 9 October 1998 Paper

FLC-VLSI smart-pixel SLMs for image processing

Michael O'Callaghan, David Ward, Stephen Gaalema, Lianhua Ji

Proceedings Volume 3466, (1998) https://doi.org/10.1117/12.326780

KEYWORDS: Spatial light modulators, Fourier transforms, Optically addressed spatial light modulators, Image filtering, Joint transforms, Modulation, Photodetectors, Polarization, Optical correlators, Amplifiers

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Proceedings Article | 9 October 1998 Paper

Highly integrated single-chip optical correlator

Michael O'Callaghan, David Ward, Stephen Perlmutter, Lianhua Ji, Christopher Walker

Proceedings Volume 3466, (1998) https://doi.org/10.1117/12.326778

KEYWORDS: Spatial light modulators, Optical correlators, Imaging systems, Mirrors, Polarizers, Prototyping, Lenses, Flexible circuits, Image filtering, Data acquisition

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Proceedings Article | 20 April 1998 Paper

Highly integrated compact optical correlators using FLC-VLSI spatial light modulators and diffractive optics

Michael O'Callaghan, David Ward, Stephen Perlmutter, Lianhua Ji, Christopher Walker

Proceedings Volume 3289, (1998) https://doi.org/10.1117/12.305489

KEYWORDS: Spatial light modulators, Imaging systems, Optical correlators, Lenses, Lithium, Prototyping, Fourier transforms, Polarizers, Optical filters, Mirrors

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Proceedings Article | 1 November 1996 Paper

Compact optical processing systems using off-axis diffractive optics and FLC-VLSI spatial light modulators

Michael O'Callaghan, Stephen Perlmutter, Robert TeKolste

Proceedings Volume 2848, (1996) https://doi.org/10.1117/12.256143

KEYWORDS: Spatial light modulators, Optics manufacturing, Optical correlators, Fourier transforms, Lenses, Reflectivity, Diffractive optical elements, Point spread functions, Spatial frequencies, Diffraction

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Proceedings Article | 13 August 1993 Paper

Analog electro-optic modulators for ferroelectric-liquid-crystal/VLSI spatial light modulators

Mark Handschy, Michael O'Callaghan, Michael Wand, Stephen Gaalema

Proceedings Volume 1911, (1993) https://doi.org/10.1117/12.151216

KEYWORDS: Analog electronics, Capacitors, Very large scale integration, Spatial light modulators, Modulators, Polarization, Capacitance, Transistors, Binary data, Molybdenum

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Proceedings Article | 15 June 1992 Paper

Easily aligned deformable-helix ferroelectric liquid crystal mixture and its use in devices

Michael Wand, Rohini Vohra, Michael O'Callaghan, Beth Roberts, Claus Escher

Proceedings Volume 1665, (1992) https://doi.org/10.1117/12.60386

KEYWORDS: Liquid crystals, Ferroelectric LCDs, Spatial light modulators, Analog electronics, Optical alignment, Beam steering, Modulators, Electro optics, Polarization, Binary data

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Showing 5 of 11 publications

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