Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Jim Fieret"'
Autor:
Monika M. Voigt, Ric Allott, Jim Fieret, David G. Lidzey, Carsten Giebeler, Jeffrey Wright, Alastair Buckley, Karl Böhlen
Publikováno v:
Organic Electronics. 6:221-228
We have developed a patterning procedure based on laser-ablation in combination with the use of water-soluble sacrificial-resists that we use to pixelate different light emitting polymers (LEPs) on a surface, creating a simple array of light emitting
Autor:
Jim Fieret, S. J. Osbourn, T. Stamatakis, R. Heath, Richard J. Winfield, Michael R. Osborne, A. Lawrence
Publikováno v:
Journal of Modern Optics. 41:1179-1192
The current performance of the high-average-power CHIRP II excimer laser is described. A power of 430 W at 1100 pulses per second has been achieved on the XeCl excimer. Particular reference is made to the undesirable high-pulse-repetition-frequency e
Autor:
Ric Allott, Karl L. Boehlen, James E. A. Pedder, Jako Greuters, Paul Trimble, Charles E. Abbott, Jim Fieret, Heather J. Booth
Publikováno v:
SPIE Proceedings.
Pulsed laser sources are widely used for the micro-processing of materials from the structuring and patterning of surfaces to the direct machining of devices. This paper discusses laser micro-processing techniques for the fabrication of microstructur
A facility for rapid prototyping of MEMS devices is crucial for the development of novel miniaturized components in all sectors of high-tech industry, e.g. telecommunications, information technology, micro-optics and aerospace. To overcome the disadv
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0bdcd2daf7eda725c28f6394ee6b15e9
https://hdl.handle.net/11475/16450
https://hdl.handle.net/11475/16450
Autor:
Phil T. Rumsby, Ines Stassen Boehlen, Oliver Paul Leisten, Jim Fieret, Yiannis Vardaxoglou, Patrick McEvoy
Publikováno v:
Photon Processing in Microelectronics and Photonics.
The use of ceramic cores of high dielectric constant is an essential part of a strategy to miniaturize GPS antennas for mobile telephones. The core reduces the guide wavelength of the conducting structures on the antenna, thereby creating a need for
Publikováno v:
SPIE Proceedings.
With the aim of reducing the heat-affected zone to improve edge quality, we present results of drilling microholes using reshaped pulsed Gaussian laser beams. A diode-pumped, high repetition rate, nanosecond pulse duration 3rd harmonic Nd:YAG laser w
Publikováno v:
SPIE Proceedings.
A novel method is presented to produce a high precision pattern of copper tracks on both sides of a 4-layer conformal radar antenna made of PEI polymer and shaped as a truncated pseudo-parabolic cylinder. The antenna is an active emitter-receiver so
Publikováno v:
SPIE Proceedings.
A novel method is presented to manufacture multilevel diffractive optical elements (DOEs) in polymer by single- step KrF excimer laser ablation using a halftone mask. The DOEs have a typical pixel dimension of 5 micrometers and are up to 512 by 512 p
Publikováno v:
SPIE Proceedings.
An Exitech Microstepper exposure tool has been used to laser micromachine a variety of polymeric materials with high resolution at a wavelength of 157nm. We have demonstrated it is possible to machine thin film materials, different photoresists and f
Autor:
Jim Fieret, Richard J. Winfield, T. Stamatakis, Michael R. Osborne, S. J. Osbourn, Andrew Lawrence, R. Heath
Publikováno v:
SPIE Proceedings.
The current performance of the high average power CHIRP II excimer laser is described. A power of 430 W at 1100 pps has been achieved on the XeCl excimer. Particular reference is made to the undesirable high pulse repetition frequency (PRF) effects o