Interaction Between Pulsed Laser and Materials

Han, Jinghua; Li, Yaguo

doi:10.5772/25061

Cited by 6 publications

(10 citation statements)

References 25 publications

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“…There is existing research on laser-material interaction [6][7][8]; however, these show how differently pulsed lasers can be used for material processing, especially in nanotechnology. Furthermore, there are relevant findings concerning laser ablation of nanoparticles in liquid environments [9][10][11][12], and they are somewhat showing the effects of different laser pulse durations on the ablation of nanoparticles.…”

Section: Pulsed Laser Ablationmentioning

confidence: 99%

Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution

Hamad¹

2016

High Energy and Short Pulse Lasers

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Ultra-short laser pulse interaction with materials has received much attention from researchers in micro-and nanomachining, especially for the generation of nanoparticles in liquid environments, because of the straightforward method and direct application for organic solvents. In addition, the colloidal nanoparticles produced by laser ablation have very high purity-they are free from surfactants and reaction products or by-products. In this chapter, nanosecond, picosecond and femtosecond laser pulse durations are compared in laser material processing. Due to the unique properties of the short and ultra-short laser pulse durations in material processing, they are more apparent in the production of precision material processing and generation of nanoparticles in liquid environments.

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Section: Pulsed Laser Ablationmentioning

confidence: 99%

Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution

Hamad¹

2016

High Energy and Short Pulse Lasers

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“…However the peculiar pattern of selective IOL optic involvement with sparing of the haptic and lens periphery may have resulted from fundamental principles of laser interaction with tissue and biomaterials, which involves complex thermal processes influenced by laser parameters, including pulse energy, laser wavelength, power density and pulse duration. 33 …”

Section: Discussionmentioning

confidence: 99%

Intraocular lens dystrophic calcification after trans-scleral diode laser treatment for a cyclodialysis cleft

Abdul-Rahman

House

Richards

2018

American Journal of Ophthalmology Case Reports

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PurposeTo describe a case of intraocular lens (IOL) dystrophic calcification as a complication of trans-scleral diode laser successfully used to treat a post-trabeculectomy cyclodialysis cleft.ObservationsA 76-year-old male with primary open angle glaucoma and pseudophakia (+19.0D Akreos M160L, Bausch & Lomb) was evaluated for vision impairment 4 months post-trabeculectomy complicated by a cyclodialysis cleft of his right eye. The patient was successfully treated with trans-scleral diode laser. After this treatment IOL opacification developed. Slit lamp examination and color photography of the anterior segment was performed prior to exchange of the opacified IOL. The explanted IOL underwent star testing, macroscopic imaging, phase contrast and scanning electron microscopy in addition to energy dispersive x-ray spectroscopy.Confluent IOL deposits developed 4 months after trans-scleral diode laser treatment requiring IOL exchange. Star optical testing of the explanted IOL showed disruption of the diffraction image. An asymmetric pattern of deposition was congruent with the laser treatment quadrant. The subsurface location and discrete nature of the deposits were seen on phase contrast and electron microscopy. Energy dispersive x-ray spectroscopy demonstrated a predominance of calcium/phosphate in the deposits. We are unaware of previous reports in the literature of IOL dystrophic calcification occurring as a complication of trans-scleral diode laser treatment for a post-trabeculectomy cyclodialysis cleft.Conclusion and importanceDelayed postoperative IOL dystrophic calcification in our case may have been from a combination of IOL biomaterial susceptibility to diode laser energy; damaged IOL material providing a nidus for calcific nucleation; and blood ocular barrier breakdown altering aqueous composition. We suggest that pseudophakia should influence the consideration of diode laser as treatment of a cyclodialysis cleft.

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“…Laser irradiation-induced effects on materials involve different aspects, including optical, electromagnetic, thermodynamic, and mechanical changes in material properties, making the laser-matter interaction an interdisciplinary and complex subject [10]. The study of laser-matter interaction is an appropriate method to study the material properties and to understand the intrinsic microstructure of materials.…”

Section: Optical Properties Of Mattermentioning

confidence: 99%

“…A fluctuating temperature distribution will be displayed due to the uneven heat diffusion. Expansion and contraction can generate laserinduced thermal stress [10]. When a material is irradiated with a laser source, the energy will initially be transformed into electric excitation energy; then it transfers to the material lattices through collisions between electrons [10].…”

Section: Optical Properties Of Mattermentioning

confidence: 99%

“…Expansion and contraction can generate laserinduced thermal stress [10]. When a material is irradiated with a laser source, the energy will initially be transformed into electric excitation energy; then it transfers to the material lattices through collisions between electrons [10]. When large amounts of energy are deposited in the atom, macroscopic changes occur, such as an increase in temperature, ionization, or gasification.…”

Section: Optical Properties Of Mattermentioning

confidence: 99%

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CHARACTERIZATION OF DIRECT ADDITIVE MANUFACTURED U3Si2 SURROGATE TO PREDICT U3Si2 MICROSTRUCTURES

Franco

2018

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Interaction Between Pulsed Laser and Materials

Cited by 6 publications

References 25 publications

Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution

Effects of Different Laser Pulse Regimes (Nanosecond, Picosecond and Femtosecond) on the Ablation of Materials for Production of Nanoparticles in Liquid Solution

Intraocular lens dystrophic calcification after trans-scleral diode laser treatment for a cyclodialysis cleft

CHARACTERIZATION OF DIRECT ADDITIVE MANUFACTURED U3Si2 SURROGATE TO PREDICT U3Si2 MICROSTRUCTURES

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