Dr. Ramzi N. Zahreddine Profile

Dr. Ramzi N. Zahreddine

Director of Optical Design

SPIE Involvement:

Author

Publications (7)

Proceedings Article | 19 November 2021 Presentation + Paper

Multilayer polymer GRIN singlets: manufacturing and performance

G. Beadie, M. Hus, A. Wright, T. Winski, R. Zahreddine, R. Lepkowicz

Proceedings Volume 12078, 1207811 (2021) https://doi.org/10.1117/12.2603646

KEYWORDS: GRIN lenses, Polymers, Refractive index, Point spread functions, Lens design, Spherical lenses, Polymethylmethacrylate, Monochromatic aberrations, Manufacturing, Tolerancing

Read Abstract +

Proceedings Article | 17 May 2016 Paper

Transformation optics relay lens design for imaging from a curved to a flat surface

Julia Wetherill, Richard Lepkowicz, Ramzi Zahreddine, Mark Neifeld

Proceedings Volume 9822, 98220U (2016) https://doi.org/10.1117/12.2228123

KEYWORDS: Relays, Staring arrays, Image resolution, Image quality, Optics manufacturing, Cameras, Metamaterials, Sensors, Geometrical optics, Magnetism

Read Abstract +

Proceedings Article | 22 February 2013 Paper

A new expanded point information content design approach for 3D live-cell microscopy at video rates

Ramzi Zahreddine, Robert Cormack, Carol Cogswell

Proceedings Volume 8589, 858902 (2013) https://doi.org/10.1117/12.2006493

KEYWORDS: Point spread functions, Microscopes, Microscopy, Focus stacking, 3D image processing, Objectives, Video microscopy, Image processing, Luminescence, Spindles

Read Abstract +

Proceedings Article | 15 March 2012 Paper

Real-time quantitative differential interference contrast (DIC) microscopy implemented via novel liquid crystal prisms

Ramzi Zahreddine, Robert Cormack, Hugh Masterson, Sharon King, Carol Cogswell

Proceedings Volume 8227, 822710 (2012) https://doi.org/10.1117/12.909484

KEYWORDS: Prisms, Microscopes, Liquid crystals, Digital image correlation, LCDs, Microscopy, Phase shifting, Imaging systems, CCD cameras, Image acquisition

Read Abstract +

Proceedings Article | 11 February 2012 Paper

Simultaneous quantitative depth mapping and extended depth of field for 4D microscopy through PSF engineering

Ramzi Zahreddine, Robert Cormack, Carol Cogswell

Proceedings Volume 8227, 822705 (2012) https://doi.org/10.1117/12.909273

KEYWORDS: Point spread functions, Image processing, Focus stacking, Microscopes, Microscopy, Ranging, Nonlinear filtering, Objectives, Image filtering, Deconvolution

Read Abstract +

Proceedings Article | 23 February 2011 Paper

Reducing noise in extended depth of field microscope images by optical manipulation of the point spread function

Ramzi Zahreddine, Robert Cormack, Carol Cogswell

Proceedings Volume 7904, 79041E (2011) https://doi.org/10.1117/12.881296

KEYWORDS: Point spread functions, Nonlinear filtering, Microscopes, Focus stacking, Microscopy, Adaptive optics, Image filtering, Linear filtering, Signal to noise ratio, Image processing

Read Abstract +

Proceedings Article | 18 September 2008 Paper

Beam shaping system based on polymer spherical gradient refractive index lenses

Ramzi Zahreddine, Richard Lepkowicz, Robert Bunch, Eric Baer, Anne Hiltner

Proceedings Volume 7062, 706214 (2008) https://doi.org/10.1117/12.795001

KEYWORDS: GRIN lenses, Beam shaping, Spherical lenses, Lenses, Polymers, Photorefractive polymers, Refractive index, Optical design, Refraction, Lens design

Read Abstract +

Showing 5 of 7 publications

View contact details

UPDATE YOUR PROFILE

Is this your profile? Update it now.

Sign into your SPIE.org account

Don’t have a profile and want one?

Create an account on SPIE.org

Keywords/Phrases

Search In:

Publication Years