Dr. Hakki H. Refai Profile

Dr. Hakki H. Refai

Lead: Display, Sensing and Imaging Systems at Optecks LLC

SPIE Involvement:

Conference Program Committee | Editorial Board Member: Journal of Optical Microsystems | Author

Area of Expertise:

Head-up Display , Augmented Reality Optics , 3D/2D Display Technologies , 3D Machine Vision

Websites:

Company Website

Publications (17)

Proceedings Article | 21 March 2016 Paper

Miniature transmissive DLP-based infrared spectrometer

Badia Koudsi, Hakki Refai

Proceedings Volume 9761, 97610D (2016) https://doi.org/10.1117/12.2213758

KEYWORDS: Spectroscopy, Sensors, Digital micromirror devices, Mirrors, Diffraction gratings, Signal detection, Signal to noise ratio, Infrared spectroscopy, Digital Light Processing, Signal processing

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Proceedings Article | 10 March 2015 Paper

Design23DPrint software for 3D DLP printers

Badia Koudsi, Hakki Refai, Robert Rodrigues, Benjamin Lee

Proceedings Volume 9376, 937602 (2015) https://doi.org/10.1117/12.2080869

KEYWORDS: Printing, 3D printing, Digital Light Processing, Digital micromirror devices, Control systems, Computer aided design, Control systems design, 3D modeling, Software development, Ultraviolet radiation

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Proceedings Article | 17 May 2013 Paper

CSpace high-resolution volumetric 3D display

Hakki Refai, George Melnik, Mark Willner

Proceedings Volume 8738, 873811 (2013) https://doi.org/10.1117/12.2022887

KEYWORDS: Digital micromirror devices, Digital Light Processing, 3D displays, Image processing, Image resolution, Fluctuations and noise, Imaging systems, Distortion, Optical design, Prototyping

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Proceedings Article | 11 May 2011 Paper

Multi-layer overlay display

Hakki Refai

Proceedings Volume 8042, 804206 (2011) https://doi.org/10.1117/12.885536

KEYWORDS: 3D displays, Digital micromirror devices, 3D image processing, Infrared lasers, Light, Composites, Crystals, Projection systems, Laser sources, Clouds

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Proceedings Article | 11 October 2010 Paper

A technique for flicker reduction in a volumetric three-dimensional display with a static image space

Badia Koudsi, Hakki Refai, James Sluss

Proceedings Volume 7835, 78350P (2010) https://doi.org/10.1117/12.865084

KEYWORDS: 3D displays, 3D image processing, Projection systems, Digital Light Processing, Image processing, Image quality, Holography, Glasses, 3D volumetric displays

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Proceedings Article | 27 February 2010 Paper

3D visualization of medical imaging using static volumetric display: CSpace

Hakki Refai, Basel Salahieh, James Sluss

Proceedings Volume 7625, 76251M (2010) https://doi.org/10.1117/12.846286

KEYWORDS: 3D displays, Medical imaging, 3D image processing, 3D volumetric displays, Ions, Digital micromirror devices, Aluminium phosphide, Projection systems, Digital Light Processing

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Proceedings Article | 1 October 2009 Paper

A high-resolution, scalable three-dimensional volumetric display

Hakki Refai, Basel Salahieh, James Sluss

Proceedings Volume 7482, 74820J (2009) https://doi.org/10.1117/12.829650

KEYWORDS: Digital micromirror devices, 3D displays, Projection systems, Digital Light Processing, Aluminium phosphide, 3D image processing, Ions, 3D volumetric displays, Upconversion

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Proceedings Article | 7 October 2008 Paper

FSO tracking and auto-alignment transceiver system

Gabriel Cap, Hakki Refai, James Sluss

Proceedings Volume 7112, 711209 (2008) https://doi.org/10.1117/12.800416

KEYWORDS: Free space optics, Transceivers, Telecommunications, Atmospheric optics, Data communications, Sensors, Signal detection, Optical tracking, Detection and tracking algorithms, Semiconductor lasers

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Proceedings Article | 13 February 2008 Paper

A tracking system for mobile FSO

Mouhammad Al-Akkoumi, Hakki Refai, James Sluss

Proceedings Volume 6877, 68770O (2008) https://doi.org/10.1117/12.763875

KEYWORDS: Free space optics, Telecommunications, Atmospheric optics, Data acquisition, Video, Diodes, Lenses, Optical tracking, Transceivers, Photodiodes

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SPIE Journal Paper | 1 August 2007

Digital micromirror device for optical scanning applications

Hakki Refai, James Sluss, Monte Tull

OE, Vol. 46, Issue 08, 085401, (August 2007) https://doi.org/10.1117/12.10.1117/1.2768978

KEYWORDS: Digital micromirror devices, Phased array optics, Micromirrors, Free space optics, Beam steering, Optical scanning, Scanners, Digital Light Processing, Prisms, Optical engineering

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Proceedings Article | 10 May 2007 Paper

Omnidirectional free-space optical (FSO) receivers

Gabriel Cap, Hakki Refai, James Sluss

Proceedings Volume 6551, 65510O (2007) https://doi.org/10.1117/12.707215

KEYWORDS: Free space optics, Receivers, Transceivers, Atmospheric optics, Buildings, Laser sources, Video, Optical testing, Transmitters, Modulation

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Proceedings Article | 26 February 2007 Paper

Tablet PC interaction with digital micromirror device (DMD)

Hakki Refai, Mostafa Dahshan, James Sluss

Proceedings Volume 6507, 65070N (2007) https://doi.org/10.1117/12.705127

KEYWORDS: Digital micromirror devices, Tablets, Digital Light Processing, Micromirrors, Projection systems, Interfaces, Aluminium phosphide, Mirrors, Display technology, Control systems

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SPIE Journal Paper | 1 February 2006

Comparative study of the performance of analog fiber optic links versus free-space optical links

Hakki Refai, James Sluss, Hazem Refai, Mohammed Atiquzzaman

OE, Vol. 45, Issue 02, 025003, (February 2006) https://doi.org/10.1117/12.10.1117/1.2174623

KEYWORDS: Free space optics, Fiber optics, Analog electronics, Fiber optics tests, Optical amplifiers, Transmitters, Fiber amplifiers, Signal attenuation, Receivers, Modulation

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Proceedings Article | 3 June 2005 Paper

The use of free-space optical links for CATV applications

Hakki Refai, James Sluss, Hazem Refai

Proceedings Volume 5825, (2005) https://doi.org/10.1117/12.605007

KEYWORDS: Free space optics, Optical amplifiers, Analog electronics, Fiber amplifiers, Intermodulation, Receivers, Distortion, Optical fibers, Transmitters, Signal attenuation

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Proceedings Article | 25 May 2005 Paper

The transmission of multiple RF signals in free-space optics using wavelength division multiplexing

Hakki Refai, James Sluss, Hazem Refai

Proceedings Volume 5793, (2005) https://doi.org/10.1117/12.606471

KEYWORDS: Free space optics, Signal to noise ratio, Wavelength division multiplexing, Signal attenuation, Analog electronics, Optical amplifiers, Fiber amplifiers, Atmospheric optics, Transmitters, Optical testing

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Proceedings Article | 25 May 2005 Paper

Free-space optical communications performance in the presence of interfering laser signals

Hakki Refai, James Sluss, Hazem Refai

Proceedings Volume 5793, (2005) https://doi.org/10.1117/12.605704

KEYWORDS: Free space optics, Dye lasers, Free space optical communications, Tunable lasers, Modulation, Telescopes, Local area networks, Atmospheric optics, Switches, Receivers

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Proceedings Article | 18 April 2005 Paper

Transporting RF signals over free-space optical links

Hakki Refai, James Sluss, Hazem Refai, Mohammed Atiquzzaman

Proceedings Volume 5712, (2005) https://doi.org/10.1117/12.590063

KEYWORDS: Free space optics, Signal to noise ratio, Optical amplifiers, Analog electronics, Transmitters, Fiber amplifiers, Modulation, Receivers, Signal attenuation, Atmospheric optics

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