Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Henrik Schittenhelm"'
Publikováno v:
SAE International Journal of Fuels and Lubricants. 3:61-69
Autor:
Henrik Schittenhelm, Xudong Fan, Alexander A. Puretzky, Michael A. Guillorn, David B. Geohegan
Publikováno v:
Applied Surface Science. :552-562
Three questions important to nanosecond laser ablation synthesis of single wall carbon nanotubes (SWNTs) have been addressed using in situ spectroscopic diagnostics: determining the temperature of the nanoparticles within the propagating plume at dif
Publikováno v:
Applied Physics A: Materials Science & Processing. 69:S505-S508
Shadowgraphic and interferometric images of vapor/plasma plumes generated by pulses of a ns-Nd:YAG laser reveal the distinctive behavior of the shock wave expansion for each of three processing wavelengths (1064 nm, 532 nm, and 355 nm), indicating th
Publikováno v:
Journal of Laser Applications. 10:255-264
Manufacturing with excimer lasers is becoming an established technology in microstructuring, drilling, and laser vapor deposition. In this article an overview of the work will be given that was recently performed at the IFSW on excimer laser ablation
Publikováno v:
Scopus-Elsevier
Ablation-using short-pulse lasers, e.g., excimer lasers and solid state lasers, is becoming an important technology for micro-machining, thin film formation and fine particle generation. Hence, there is a great interest to understand the interaction
Autor:
Henrik Schittenhelm, Serena A. Schlueter, Walter W. Duley, Hamid R. Jahani, Robert E. Mueller, George P. Pinho
Publikováno v:
Applied Surface Science. :983-987
Time-of-flight (TOF) mass spectrometry has been used to investigate the mass distribution of the material ablated from the interaction of a UV laser (FWHM=30 ns, λ=308 nm) with aluminum, copper, and polyimide at laser intensities of 3.8×1012–1.0
Publikováno v:
Journal of Physics D: Applied Physics. 31:418-427
Short-pulse laser ablation in air at 0.1 MPa leads to intense evaporation of the target material. The ablated material compresses the surrounding gas and leads to the formation of a shock wave. The incident laser radiation interacts with the partiall
Publikováno v:
Scopus-Elsevier
In earlier ablation experiments the excimer laser-induced interaction zone was observed using Schlieren-photography. A spherical blast wave and, additionally, several regions separated by discontinuities behind the shock front were discovered during
Publikováno v:
Journal of Physics D: Applied Physics. 29:1564-1575
KrF excimer laser ablation in air at an ambient pressure of 1 bar leads to an intense evaporation of target material. The ablated material compresses the surrounding gas and leads to the formation of a shock wave. The incident laser radiation interac
Synthesis and characterization of single-wall carbon nanotube–amorphous diamond thin-film composites
Autor:
David B. Geohegan, Henrik Schittenhelm, Michael J. Lance, Alexander A. Puretzky, Phillip F. Britt, Gerald Earle Jellison Jr
Publikováno v:
Applied Physics Letters. 81:2097-2099
Thin-film single-wall carbon nanotube (SWNT) composites synthesized by pulsed laser deposition (PLD) are reported. Ultrahard, transparent, pure-carbon, electrically insulating, amorphous diamond thin films were deposited by PLD as scratch-resistant,