Topic
Laser ablation
About: Laser ablation is a research topic. Over the lifetime, 19948 publications have been published within this topic receiving 353475 citations.
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TL;DR: In this paper, a laser ablation of a metal silver plate in an aqueous solution of sodium dodecyl sulfate, C12H25OSO3Na, was shown to be essentially the same as that of silver nanoparticles chemically prepared in a solution.
Abstract: Silver nanoparticles were produced by laser ablation of a metal silver plate in an aqueous solution of sodium dodecyl sulfate, C12H25OSO3Na. The absorption spectrum of the silver nanoparticles is found to be essentially the same as that of silver nanoparticles chemically prepared in a solution. The size distribution of the nanoparticles measured by an electron microscope shifts to a smaller size with increase in the concentration of sodium dodecyl sulfate and with a decrease in the irradiation laser power. These findings are explained by a scheme that the nanoparticles are formed via rapid formation of an embryonic silver particle and a consecutive slow particle growth in competition with termination of the growth due to SDS coating on the particle.
768 citations
17 Nov 2006
TL;DR: In this paper, the authors discuss the use of pulsed laser deformation for the removal of complex materials and their application in biomedical applications. But they do not discuss the application of such deformation in drug delivery systems.
Abstract: SECTION I. 1. Pulsed Laser Deposition of Complex Materials: Progress Towards Applications (D. Norton). SECTION II. 2. Resonant Infrared Pulsed Laser Ablation and Deposition of Thin Polymer Films (D. Bubb & R. Haglund). 3. Deposition of Polymers and Biomaterials Using the Matrix Assisted Pulsed Laser Eveporation (MAPLE) Process (A. Pique). 4. In situ Diagnostics by High Pressure RHEED during PLD (G. Rijnders & D. Blank). 5. Ultra-fast laser Ablation and Film Deposition (E. Gamaly, et al.). 6. Cross-beam PLD: Metastable Film Structures from Intersecting Plumes (A. Gorbunoff). 7. Combinatorial Pulsed Laser Deposition (I. Takeuchi). 8. Growth Kinetics During Pulsed Laser Deposition (G. Rijnders & D. Blank). 9. Large Area Commercial Pulsed Laser Deposition (J. Greer). SECTION III. 10. Coating Powders for Drug Delivery Systems Using Pulsed Laser Deposition (J. Talton, et al.). 11. Transparent Conducting Oxide Films (H. Kim). 12. ZnO and ZnO-related Compounds (J. Perriere, et al.). 13. Group III Nitride Growth (D. O'Mahony & J. Lunney). 14. Pulsed Laser Deposition of High-Temperature Superconducting Thin Films and Their Applications (B. Schey). 15. DLC: Medical and Mechanical Applications (R. Narayan). 16. Pulsed Laser Deposition of Metals (H. Krebs). SECTION IV. 17. Optical Waveguide Growth and Applications (R. Eason, et al.). 18. Biomaterials: New issues and Breakthroughs for Biomedical Applications (V. Nelea, et al.). 19. Thermoelectric Materials (A. Dauscher & B. Lenoir). 20. Piezoelectrics (F. Cracium & M. Dinescu). 21. Ferroelectric Thin Films for Microwave Device Applications (C. Chen & J. Horwitz). 22. Films for Electrochemical Applications (M. Montenegro & T. Lippert). 23. Pulsed Laser Deposition of Tribological Coatings (A. Voevodin, et al.). SECTION V. 24. Laser Ablation Synthesis of Single-wall Carbon Nanotubes: The SLS Model (A. Gorbunoff & O. Jost). 25. Quasicrystalline Thin Films (P. Willmott).
766 citations
TL;DR: In this paper, an ArF excimer laser coupled to a quadrupole inductively coupled plasma mass spectrometry (ICP-MS) was used for the measurement of a range of elements during excavation of a deepening ablation pit in a synthetic glass.
765 citations
TL;DR: In this paper, the mechanism of ablation of solids by intense femtosecond laser pulses is described in an explicit analytical form, and the formulas for ablation thresholds and ablation rates for metals and dielectrics, combining the laser and target parameters, are derived and compared to experimental data.
Abstract: The mechanism of ablation of solids by intense femtosecond laser pulses is described in an explicit analytical form. It is shown that at high intensities when the ionization of the target material is complete before the end of the pulse, the ablation mechanism is the same for both metals and dielectrics. The physics of this new ablation regime involves ion acceleration in the electrostatic field caused by charge separation created by energetic electrons escaping from the target. The formulas for ablation thresholds and ablation rates for metals and dielectrics, combining the laser and target parameters, are derived and compared to experimental data. The calculated dependence of the ablation thresholds on the pulse duration is in agreement with the experimental data in a femtosecond range, and it is linked to the dependence for nanosecond pulses.
749 citations
TL;DR: In this article, micro-explosions inside fused silica, quartz, sapphire, and other transparent materials using tightly focused 100 fs laser pulses are investigated, where material is ejected from the center, forming a cavity surrounded by a region of compacted material.
Abstract: We initiate micro-explosions inside fused silica, quartz, sapphire, and other transparent materials using tightly focused 100 fs laser pulses. In the micro-explosions, material is ejected from the center, forming a cavity surrounded by a region of compacted material. We examine the resulting structures with optical microscopy, diffraction, and atomic force microscopy of internal cross sections. We find the structures have a diameter of only 200–250 nm, which we attribute to strong self-focusing of the laser pulse. These experiments probe a unique regime of light propagation inside materials at intensities approaching 1021 W/m2, the electron ionization that accompanies it, and the material response to extreme pressure and temperature conditions. The micro-explosions also provide a novel technique for internal microstructuring of transparent materials.
678 citations