منابع مشابه
Fabrication of strong long-period gratings in hydrogen-free fibers with 157-nm F2-laser radiation.
Long-period gratings were fabricated in standard telecommunication fiber (Corning SMF-28) by use of what is believed to be record short-wavelength light from a 157-nm F(2) laser. Strong loss peaks were formed without the need for enhancement techniques such as hydrogen loading. The magnitude of the attenuation peak was sensitive to the single-pulse laser fluence, decreasing with increasing puls...
متن کاملTop Surface Imaging at 157 nm
Top surface imaging (TSI) has had an interesting history. This process showed great promise in the late 1980’s and several attempts were made to introduce it to full-scale manufacturing. Unfortunately, defect density problems limited the process and it fell from favor. TSI emerged again as an important part of the EUV and 193 nm strategies in the early stages of those programs because it offere...
متن کاملComparison the Effect of 810 nm and 940 nm Diode Lasers on Solobacterium Moorei in Vitro
Background and aim: Given the role of Solobacterium moorei in bacteremia, septicemia, oral infections, halitosis, and periodontal diseases and previous research defects considering the important role of laser in comparison with the application of antimicrobial agents, the purpose of this research was to compare the effect of 810nm and 940nm lasers on Solobacterium moorei in vitro situation. Mat...
متن کاملVUV 157 nm laser ablation of composite structures
We report on the laser ablation of composite prismatic structures using a vacuum ultraviolet (VUV) 157 nm F2 laser. Polycarbonate and CR-39 substrates have been intentionally seeded with silver wires and silicon carbide whiskers respectively. The seed particles remain attached to the underlying substrate after laser ablation, forming composite silver-polycarbonate and silicon carbide-CR-39 inte...
متن کاملSingle Layer Fluoropolymer Resists for 157 nm Lithography
We have developed a family of 157 nm resists that utilize fluorinated terpolymer resins composed of 1) tetrafluoroethylene (TFE), 2) a norbornene fluoroalcohol (NBFOH), and 3) t-butyl acrylate (t-BA). TFE incorporation reduces optical absorbance at 157 nm, while the presence of a norbornene functionalized with hexafluoroisopropanol groups contributes to aqueous base (developer) solubility and e...
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ژورنال
عنوان ژورنال: The Review of Laser Engineering
سال: 1991
ISSN: 0387-0200,1349-6603
DOI: 10.2184/lsj.19.11_986