Dr. Farid Ahmed Profile

Dr. Farid Ahmed

Assistant Professor at Univ of Texas Rio Grande Valley

SPIE Involvement:

Author

Publications (6)

SPIE Journal Paper | 28 November 2020

Improvement of light intensity and efficiency of n-ZnO/NiO/p-GaN heterojunction-based white light emitting diodes using micro-/nanolens array

Apurba Adhikary, Md. Shamim Ahsan, Md. Mahbub Hossain, Md. Bipul Hossain, S.H. Shah Newaz, Farid Ahmed, Ik-Bu Sohn

OE, Vol. 59, Issue 11, 117108, (November 2020) https://doi.org/10.1117/12.10.1117/1.OE.59.11.117108

KEYWORDS: Light emitting diodes, Electroluminescence, Spherical lenses, External quantum efficiency, Near field, Refractive index, Optical engineering, Visible radiation, Gallium nitride, Zinc oxide

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Proceedings Article | 23 February 2017 Paper

Interferometric measurement of refractive index modification in a single mode microfiber

Farid Ahmed, Vahid Ahsani, Martin B. Jun

Proceedings Volume 10102, 101021W (2017) https://doi.org/10.1117/12.2252825

KEYWORDS: Refractive index, Optical fibers, Femtosecond phenomena, Mach-Zehnder interferometers, Infrared lasers, Ultrafast phenomena, Interferometry, Ultrafast lasers, Design for manufacturability, Optics manufacturing, Single mode fibers, Cladding, Optical design, Photonic devices, Modulation

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Proceedings Article | 4 March 2015 Paper

Bragg grating fabrication in microfiber by femtosecond pulse filamentation induced periodic refractive index modification

Farid Ahmed, Martin Jun

Proceedings Volume 9350, 93500C (2015) https://doi.org/10.1117/12.2080442

KEYWORDS: Fiber Bragg gratings, Femtosecond phenomena, Single mode fibers, Modulation, Temperature metrology, Refractive index, Sensors, Cladding, Ultraviolet radiation, Objectives

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Proceedings Article | 15 March 2013 Paper

Characterization of femtosecond laser filament-fringes in titanium

Md. Shamim Ahsan, Fadia Dewanda, Farid Ahmed, Martin B. Jun, Man Seop Lee

Proceedings Volume 8611, 86111I (2013) https://doi.org/10.1117/12.2003506

KEYWORDS: Titanium, Femtosecond phenomena, Soda-lime glass, Beam shaping, Glasses, Diffraction, Laser sources, Refractive index, Electroluminescence, Plasma

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Proceedings Article | 13 March 2013 Paper

Femtosecond laser based in-fiber long period grating fabrication for improved solution sensing

Farid Ahmed, Md. Shamim Ahsan, Man Seop Lee, Martin B.G. Jun

Proceedings Volume 8607, 86071L (2013) https://doi.org/10.1117/12.2005731

KEYWORDS: Femtosecond phenomena, Cladding, Ultraviolet radiation, Modulation, Refractive index, Single mode fibers, Hydrogen, Signal attenuation, Sensors, Glasses

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Showing 5 of 6 publications

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