منابع مشابه
Femtosecond Laser Micromachining of Single-crystal Superalloys
Investigations on femtosecond laser micromachining of single crystal superalloys with and without plasma-sprayed thermal barrier coatings were conducted under laser fluences ranging from 0.1 J/cm up to 160 J/cm. Micromachining was carried out in air using a titanium:sapphire laser system ( = 780 nm) operating at a repetition rate of 1 kHz and delivering individual pulses of ~150 fs duration. Th...
متن کاملFemtosecond laser micromachining of fused silica molds.
The use of low-energy femtosecond laser beam combined with chemical etching has been proven to be an efficient method to fabricate three-dimensional structures in fused silica. For high-volume application, this technology--like other serial processes--suffers from a moderate production rate. Here, we show that femtosecond laser can also be employed to fabricate silica molds and other patterned ...
متن کاملFemtosecond Laser Micromachining: Current Status and Applications
Femtosecond lasers currently show much promise as potential sources of choice in a number of laser micromachining applications, including biomedicine, photonics and semiconductors. The status of micromachining with femtosecond pulses is reviewed for a variety of materials and a comparison made with other solid-state lasers. An outlook for developments in this area is presented.
متن کاملMicromachining with a High Repetition Rate Femtosecond Fiber Laser
Industrial micromachining applications with ultrashort pulse lasers are often difficult to make practical due to the lack of robustness of the laser and the slow processing speed resulting from the low repetition rate. In the past, amplified, femtosecond lasers produced high pulse energies, but at a slow pulse repetition rate of around a kHz. The high repetition rate oscillators did not have en...
متن کاملFabrication of waveguide spatial light modulators via femtosecond laser micromachining
We have previously introduced an anisotropic leaky-mode modulator as a waveguide-based, acousto-optic solution for spatial light modulation in holographic video display systems. Waveguide fabrication for these and similar surface acoustic wave devices relies on proton exchange of a lithium niobate substrate, which involves the immersion of the substrate in an acid melt. While simple and effecti...
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ژورنال
عنوان ژورنال: Journal of the Japan Society for Precision Engineering
سال: 2006
ISSN: 1882-675X,0912-0289
DOI: 10.2493/jjspe.72.943