Experimental investigation of the effect of process parameters on cutting region temperature and cutting edge quality in laser cutting of AL6061T6 alloy

M Sharifi, M Akbari - Optik, 2019 - Elsevier
Laser cutting of AL6061T6 alloy was conducted to investigate the effects of process
parameters on cutting region temperature and cutting edge quality. The process variables …

Dependence of the heating effect on tissue absorption coefficient during corneal reshaping using different UV lasers: A numerical study

I Abdelhalim, O Hamdy, AA Hassan… - Physical and Engineering …, 2021 - Springer
Corneal reshaping using laser ablation effect is a well-known ophthalmologic operation
implemented to correct many vision disorders. UV pulsed lasers are utilized in this surgery …

Evaluating the efficacy of Nd: YAG fourth harmonic (266 nm) in comparison with ArF excimer (193 nm) in laser corneal reshaping: ex vivo pilot study

I Abdelhalim, O Hamdy, MA Khattab… - International …, 2023 - Springer
Purpose Laser corneal reshaping is a common eye surgery utilized to overcome many
vision disorders. Different UV laser wavelengths can be effective in the treatment. However …

Monitoring liver tissue photocoagulation using spatially-resolved diffuse reflectance and laser-induced fluorescence spectroscopy

O Hamdy, Z Abdel-Salam… - AIP Conference …, 2023 - pubs.aip.org
The liver is an essential source of various vital proteins that specify the normal function of the
blood coagulation cascade. Coagulation and abnormality in blood clotting levels are …

Nd: YAG fourth harmonic (266-nm) generation for corneal reshaping procedure: an ex-vivo experimental study

I Abdelhalim, O Hamdy, AA Hassan, SH Elnaby - Plos one, 2021 - journals.plos.org
Corneal reshaping is a common medical procedure utilized for the correction of different
vision disorders relying on the ablation effect of the UV pulsed lasers, especially excimer …

A modified spatial frequency domain imaging configuration with reduced speckle noise images

RM Abdelazeem, O Hamdy - Journal of Optics, 2024 - Springer
Spatial frequency domain imaging (SFDI) is a safe wide-field and non-contact imaging
modality that has been broadly utilized in various medical applications. It has shown …

Assessing the local temperature of human cornea exposed to surface ablation by different laser refractive-surgery devices: a numerical comparative study

I Abdelhalim, O Hamdy, AA Hassan… - Lasers in Medical Science, 2021 - Springer
To evaluate the local temperature at corneal tissue after applying single laser pulse from six
commercial devices; Medilex™, Katana laser-soft, MEL90, Technolas-Teneo317, Alcon …

Ex Vivo Optical Properties Estimation for Reliable Tissue Characterization

N Solouma, O Hamdy - Photonics, 2023 - mdpi.com
Lasers are demonstrating high impact in many medical and biological applications. They
have different interaction mechanisms within tissues depending on operational parameters …

An Optically Augmented Visual Aid for Individuals with Age-Related Macular Degeneration

NH Solouma, N Negm, H Ahmad, Y Gamal - Photonics, 2024 - mdpi.com
Normal vision is a precious gift to mankind. Any vision defect or degradation is actually an
intimidating problem for individuals and societies. Therefore, researchers are continually …