Dr. Khaled Gasmi Profile

Dr. Khaled Gasmi

Associate Professor at King Fahd Univ of Petroleum & Nuberaks

SPIE Involvement:

Author

Area of Expertise:

Laser Spectroscopy and Molecular Beams , Laser Remote Sensing

Websites:

Company Website

Publications (22)

SPIE Journal Paper | 5 September 2024

External cavity diode laser in Littrow configuration with narrowband emission at 448 nm for NO₂ gas detection

Khaled Gasmi, Abdulaziz Aljalal, Watheq Al-Basheer

OE, Vol. 63, Issue 09, 096102, (September 2024) https://doi.org/10.1117/12.10.1117/1.OE.63.9.096102

KEYWORDS: Semiconductor lasers, Diffraction gratings, Emission spectrum, Optical gratings, Emission wavelengths, Holography, Wavelength tuning, Molecules, Optical engineering, Light absorption

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Proceedings Article | 20 June 2024 Poster + Paper

Littrow configuration tunable external cavity diode laser with narrowband emission at 448 nm

Khaled Gasmi, Abdulaziz Aljalal, Watheq Al-Basheer

Proceedings Volume 13002, 130020P (2024) https://doi.org/10.1117/12.3021900

KEYWORDS: Semiconductor lasers, Fabry Perot interferometers, Emission spectrum, Holography, Emission wavelengths, Wavelength tuning, Molecules, CCD cameras, Monochromators

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Proceedings Article | 31 May 2023 Poster + Paper

Optical sensor for NO2 gas detection using an external cavity diode laser

Khaled Gasmi, Abdulaziz AlJalal, Watheq Al-Basheer

Proceedings Volume 12572, 1257214 (2023) https://doi.org/10.1117/12.2665254

KEYWORDS: Semiconductor lasers, Emission wavelengths, Diffraction gratings, Nitrogen dioxide, CCD cameras, Optical sensors, Optical gratings, Emission spectrum, Optical gas detection

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Proceedings Article | 28 October 2022 Poster + Paper

Performance of a cloud-aerosol Lidar system at 532 and 1064 nm: application to studies of cloud structures and aerosol profiles from the ground

Khaled Gasmi

Proceedings Volume 12265, 1226509 (2022) https://doi.org/10.1117/12.2635855

KEYWORDS: LIDAR, Signal detection, Photodetectors, Clouds, Telescopes, Atmospheric particles, Signal to noise ratio, Aerosols, Pulsed laser operation, Optical amplifiers

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Proceedings Article | 18 April 2021 Poster + Presentation + Paper

A simple and reliable counting and display circuit for laser rangefinder

Khaled Gasmi

Proceedings Volume 11772, 1177219 (2021) https://doi.org/10.1117/12.2588197

KEYWORDS: Laser based displays, Digital electronics, Time metrology, Target detection, Solids, Pulsed laser operation, Optoelectronics, Laser development, Electronic components, Avalanche photodiodes

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Proceedings Article | 18 April 2021 Presentation + Paper

Pore size assessment of nanoporous alumina using absorption of laser light

A. Aljalal, A. Al-Saudi, K. Gasmi, W. Al-Basheer, S. Qari

Proceedings Volume 11772, 1177213 (2021) https://doi.org/10.1117/12.2589272

KEYWORDS: Absorption, Molecules, Oxygen, Semiconductor lasers, Scattering media, Mercury, Gases, Absorption spectroscopy

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Proceedings Article | 21 August 2020 Poster + Presentation + Paper

Utilizing wall collision broadening of O2 absorption line for pore size assessment

Ahmed Al-Saudi, Abdulaziz Aljalal, Watheq Al-Basheer, Khaled Gasmi, Samer Qari

Proceedings Volume 11483, 114830Q (2020) https://doi.org/10.1117/12.2565900

KEYWORDS: Oxygen, Absorption, Molecules, Absorbance, Scanning electron microscopy, Vertical cavity surface emitting lasers, Gases, Signal detection, Sensors

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Proceedings Article | 1 April 2020 Presentation + Paper

Blue external-cavity diode laser for NO2 gas detection

Khaled Gasmi, Abdulaziz Aljalal, Watheq Al-Basheer

Proceedings Volume 11356, 1135616 (2020) https://doi.org/10.1117/12.2554539

KEYWORDS: Semiconductor lasers, Diffraction gratings, Fabry–Perot interferometers, Wavelength tuning, Nitrogen dioxide, Absorption, Spectroscopy, Laser resonators

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Proceedings Article | 30 April 2019 Paper

Laser-induced shockwave crystallization of nitrates

Watheq Al-Basheer, Yusron Darojat, Khaled Gasmi, Abdulaziz Aljalal

Proceedings Volume 11026, 110260X (2019) https://doi.org/10.1117/12.2518722

KEYWORDS: Crystals, Laser crystals, Laser irradiation, Scanning electron microscopy, Nd:YAG lasers, Sodium, Potassium, Calcium, Minerals, Pulsed laser operation

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Proceedings Article | 11 April 2019 Paper

Wide dynamic range laser remote sensing detection chain

Khaled Gasmi

Proceedings Volume 11028, 110281C (2019) https://doi.org/10.1117/12.2520035

KEYWORDS: Optical amplifiers, Interference (communication), Signal to noise ratio, Amplifiers, Avalanche photodetectors, Signal processing, Photodetectors, Signal detection, Distortion

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Proceedings Article | 11 April 2019 Paper

Estimation of pore sizes using laser absorption in molecular oxygen gas enclosed in mesoporous alumina

Ahmed Al-Saudi, Watheq Al-Basheer, Abdulaziz Aljalal, Khaled Gasmi, Samer Qari

Proceedings Volume 11028, 1102818 (2019) https://doi.org/10.1117/12.2519604

KEYWORDS: Absorption, Oxygen, Semiconductor lasers, Molecular lasers, Sensors, Molecules, Vertical cavity surface emitting lasers, Signal detection, Spectroscopy, Scattering media

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Proceedings Article | 9 May 2018 Paper

Design and development of a detection chain for an atmospheric lidar system

Khaled Gasmi

Proceedings Volume 10680, 1068029 (2018) https://doi.org/10.1117/12.2306611

KEYWORDS: Signal detection, Amplifiers, Photodetectors, Resistors, Pulsed laser operation, Avalanche photodetectors, Optical amplifiers, Interference (communication), Atmospheric sensing, Atmospheric laser remote sensing

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Proceedings Article | 9 May 2018 Paper

Temperature dependence of external differential quantum efficiency of GaN-based blue laser diode

Watheq Al-Basheer, Abdulaziz Aljalal, Khaled Gasmi, Taofeek Adigun

Proceedings Volume 10682, 106821O (2018) https://doi.org/10.1117/12.2306315

KEYWORDS: Semiconductor lasers, Quantum efficiency, External quantum efficiency, Temperature metrology, Photons, Absorption, Laser damage threshold, CCD cameras, Monochromators, Laser stabilization

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Proceedings Article | 16 May 2017 Paper

High-resolution investigation of longitudinal modes of a GaN-based blue laser diode

Watheq Al-Basheer, Abdulaziz Aljalal, Khaled Gasmi, Taofeek Adigun

Proceedings Volume 10231, 102312V (2017) https://doi.org/10.1117/12.2264383

KEYWORDS: Semiconductor lasers, Photodetectors, Gallium nitride, Spectroscopy, Modes of laser operation, Laser applications, Laser damage threshold, Temperature metrology, Photon counting, Sensors, Monochromators, CCD cameras, Minerals, Fabry–Perot interferometers, Beam splitters, Diffraction gratings

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Proceedings Article | 16 May 2017 Paper

Detection of trace amount of NO2 gas using tunable blue laser diode

Abdulaziz Aljalal, Sameh Altanany, Khaled Gasmi, Watheq Al-Basheer, Morad Hamad

Proceedings Volume 10231, 102311E (2017) https://doi.org/10.1117/12.2264513

KEYWORDS: NOx, Semiconductor lasers, Laser spectroscopy, Spectroscopy, Absorption, Tunable diode lasers, Absorption spectroscopy, Chemical fiber sensors, Biosensors, Optical sensing, Transmittance, Sensors, Molecules, Light sources, Signal detection

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Proceedings Article | 19 October 2016 Presentation + Paper

Measurements of profiles of aerosol/cloud in the lower atmosphere using a lidar system

Khaled Gasmi

Proceedings Volume 10001, 100010A (2016) https://doi.org/10.1117/12.2241398

KEYWORDS: Atmospheric particles, LIDAR, Clouds, Remote sensing, Atmospheric laser remote sensing, Atmospheric optics, Atmospheric sensing, Visibility, Signal detection, Telescopes

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SPIE Journal Paper | 2 September 2016

Fast- and low-noise optical receiver for near-infrared light detection and ranging

Khaled Gasmi

OE, Vol. 55, Issue 09, 097101, (September 2016) https://doi.org/10.1117/12.10.1117/1.OE.55.9.097101

KEYWORDS: LIDAR, Receivers, Signal detection, Signal to noise ratio, Avalanche photodetectors, Silicon, Interference (communication), Remote sensing, Pulsed laser operation, Avalanche photodiodes

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Proceedings Article | 29 April 2016 Paper

Fast and low noise optical receiver using Si APD for cloud-aerosol LIDAR

Khaled Gasmi

Proceedings Volume 9899, 98990I (2016) https://doi.org/10.1117/12.2227581

KEYWORDS: Receivers, Channel projecting optics, Signal detection, LIDAR, Signal to noise ratio, Remote sensing, Silicon, Avalanche photodiodes, Signal processing, Sensing systems, Photodiodes, Interference (communication), Clouds, Avalanche photodetectors, Atmospheric particles

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Proceedings Article | 5 May 2015 Paper

Investigating temperature effects on the spectral lines of blue laser diodes for monitoring NO2 gas pollution

Khaled Gasmi, Watheq Al-Basheer, Abdulaziz Aljalal

Proceedings Volume 9506, 950628 (2015) https://doi.org/10.1117/12.2179135

KEYWORDS: Semiconductor lasers, Diodes, Monochromators, NOx, Pollution, Temperature metrology, Fabry–Perot interferometers, CCD cameras, Minerals, Gallium nitride

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Proceedings Article | 5 May 2015 Paper

Evolution of blue laser diode spectral lines with applied current in the range 446-448 nm

Watheq Al-Basheer, Abdulaziz Aljalal, Khaled Gasmi

Proceedings Volume 9506, 950629 (2015) https://doi.org/10.1117/12.2179136

KEYWORDS: Semiconductor lasers, Monochromators, CCD cameras, Laser resonators, Spectral resolution, Gallium nitride, Minerals, Fabry–Perot interferometers, Semiconductors, Data acquisition

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Proceedings Article | 5 May 2015 Paper

Active differential optical absorption spectroscopy for NO2 gas pollution using blue light emitting diodes

Abdulaziz Aljalal, Khaled Gasmi, Watheq Al-Basheer

Proceedings Volume 9506, 95062A (2015) https://doi.org/10.1117/12.2179139

KEYWORDS: NOx, Spectroscopy, Blue light emitting diodes, Light emitting diodes, Light sources, Absorption, Active optics, Absorption spectroscopy, Molecules, Pollution

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Proceedings Article | 23 October 2012 Paper

Laser-induced plasma shutter for infra red range-resolved DIAL

Taieb Gasmi, Khaled Gasmi

Proceedings Volume 8516, 85160G (2012) https://doi.org/10.1117/12.928324

KEYWORDS: Nitrogen, Camera shutters, Helium, Argon, Plasma, Pulsed laser operation, Carbon dioxide lasers, Gases, Laser applications, Atmospheric plasma

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Showing 5 of 22 publications

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