Prof. Muhammad Nadeem Akram Profile

Prof. Muhammad Nadeem Akram

Professor at Univ of Southeastern Norway

SPIE Involvement:

Author

Area of Expertise:

Photonics , Optical Design , Speckle , Optoelectronics

Websites:

Personal Website | Company Website

Publications (24)

Proceedings Article | 20 May 2022 Presentation + Paper

Polarization-sensitive Fourier ptychography microscopy using dome-shaped LED illuminator

Mahdieh GholamiMayani, Dag Werner Breiby, Muhammad Nadeem Akram

Proceedings Volume 12136, 1213606 (2022) https://doi.org/10.1117/12.2621046

KEYWORDS: Light emitting diodes, Polarization, Birefringence, Polarimetry, Microscopy, Image resolution, Fiber optic illuminators, Objectives, Lawrencium, Cameras

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Proceedings Article | 30 March 2020 Presentation + Paper

Fourier ptychographic microscopy using Fresnel propagation with reduced number of images

Mojde Hasanzade, Knut Olav Schnell, Anel Alekic, Dag Werner Breiby, Muhammad Nadeem Akram

Proceedings Volume 11351, 1135115 (2020) https://doi.org/10.1117/12.2554515

KEYWORDS: Light emitting diodes, Multiplexing, Objectives, Reconstruction algorithms, Image resolution, Microscopy, Cameras, Microscopes, Sensors, Phase retrieval

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SPIE Journal Paper | 24 September 2018

Trial functions for reduced-order models of piezoelectrically actuated microelectromechanical systems tunable lenses

Mahmoud A. Farghaly, Ulrik Hanke, Muhammad Nadeem Akram, Einar Halvorsen

OE, Vol. 57, Issue 09, 095103, (September 2018) https://doi.org/10.1117/12.10.1117/1.OE.57.9.095103

KEYWORDS: Microelectromechanical systems, Finite element methods, Optical engineering, Lenses, Matrices, Performance modeling, Systems modeling, Differential equations, Glasses, Mathematical modeling

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SPIE Journal Paper | 21 May 2018

Preferred image quality metric for shifted superimposition-based resolution-enhanced images

Svein Arne Jervell Hansen, Muhammad Nadeem Akram, Jon Yngve Hardeberg, Marius Pedersen

JEI, Vol. 27, Issue 03, 033017, (May 2018) https://doi.org/10.1117/12.10.1117/1.JEI.27.3.033017

KEYWORDS: Image quality, Image resolution, Spatial light modulators, Visualization, Projection systems, Image enhancement, Image analysis, Signal to noise ratio, Distortion, Resolution enhancement technologies

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SPIE Journal Paper | 21 March 2017 Open Access

Optical performance of piezoelectrically actuated MEMS tunable lenses with various pupil geometries

Mahmoud Farghaly, Muhammad Nadeem Akram, Einar Halvorsen

OE, Vol. 56, Issue 03, 035104, (March 2017) https://doi.org/10.1117/12.10.1117/1.OE.56.3.035104

KEYWORDS: Microelectromechanical systems, Lenses, Finite element methods, Modulation transfer functions, Actuators, Wavefronts, Refractor telescopes, Optical engineering, Platinum, Glasses

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Proceedings Article | 3 December 2014 Paper

Spatial coherence measurement of high power broad area edge emitting laser

Belal Khajeh, Thi-Kim-Trinh Tran , M. Nadeem Akram

Proceedings Volume 9297, 92970R (2014) https://doi.org/10.1117/12.2071343

KEYWORDS: Spatial coherence, Prisms, High power lasers, Continuous wave operation, Pulsed laser operation, Wavefronts, Interferometers, Visibility, Michelson interferometers

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Proceedings Article | 11 September 2012 Paper

Speckle reduction characterization of high power broad-area edge-emitting diodes lasers

Kim Trinh Tran Thi, Zhaomin Tong, Muhammad Akram

Proceedings Volume 8413, 84131N (2012) https://doi.org/10.1117/12.978228

KEYWORDS: Speckle, Pulsed laser operation, Semiconductor lasers, High power lasers, Diffusers, CCD cameras, Laser applications, Cameras, Charge-coupled devices, Light sources

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Proceedings Article | 11 September 2012 Paper

Dynamic interference fringes generated by optical interferometer for laser speckle reduction

Zhaomin Tong, Akram Nadeem, Xuyuan Chen

Proceedings Volume 8413, 84131M (2012) https://doi.org/10.1117/12.975950

KEYWORDS: Speckle, Modulation, Diffusers, Actuators, Laser optics, Interferometers, Speckle pattern, Mirrors, Scattering, Cameras

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SPIE Journal Paper | 1 September 2011 Open Access

Errata: Sinusoidal rotating grating for speckle reduction in laser projectors: feasibility study

Sigbjørn Egge, Kristine Welde, Ulf Oesterberg, Astrid Aksnes, M. Nadeem Akram, Zhaomin Tong, Vladimir Kartashov

OE, Vol. 50, Issue 09, 099801, (September 2011) https://doi.org/10.1117/12.10.1117/1.3640737

KEYWORDS: Speckle, Projection systems, Electronics, Telecommunications, Optical engineering, Microsystems, Laser applications

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SPIE Journal Paper | 1 August 2011

Sinusoidal rotating grating for speckle reduction in laser projectors: feasibility study

Sigbjørn Egge, Kristine Welde, Ulf Oesterberg, Astrid Aksnes, Nadeem Akram, Vladimir Kartashov, Zhaomin Tong

OE, Vol. 50, Issue 08, 083202, (August 2011) https://doi.org/10.1117/12.10.1117/1.3613937

KEYWORDS: Speckle, Diffraction, Spatial light modulators, Diffraction gratings, Speckle pattern, Diffusers, Projection systems, Phase shift keying, Modulation, Modulators

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