Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Jim J. Chang"'
Publikováno v:
Journal of Laser Applications. 10:285-291
We have developed high-precision machining based on high-power pulsed green lasers (30–40 ns pulse width) at multi-kHz repetition rate. Dynamics of material removal has been investigated using a copper vapor laser. We found that noticeable surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::752411182c1d93bc837e81c69de9a053
https://doi.org/10.2351/1.521863
https://doi.org/10.2351/1.521863
Autor:
Jim J. Chang
Publikováno v:
Asia Communications and Photonics Conference.
The approach and challenge of innovation through cross-discipline research will be presented to demonstrate the feasibility of achieving major advancement in both fundamental science understanding and capability enhancement. Specific examples will be
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f98a9efb399806beadd2b1d4b62e3ce
https://doi.org/10.1364/acp.2012.ath1g.1
https://doi.org/10.1364/acp.2012.ath1g.1
Publikováno v:
SPIE Proceedings.
The National Ignition Facility (NIF) at the Lawrence Livermore National Laboratory (LLNL) will routinely fire high energy shots (approaching 10 kJ per beamline) through the final optics, located on the target chamber. After a high fluence shot, excee
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a09ce9dd4a262b573608e1b2d96c728f
https://doi.org/10.1117/12.862596
https://doi.org/10.1117/12.862596
Autor:
Jim J. Chang
Publikováno v:
Optics letters. 20(6)
A new injection-controlled laser resonator developed to achieve diffraction-limited beam quality for high-gain short-pulse lasers is reported. The resonator is seeded with a short-pulse laser signal by adjoint-coupled injection. The two-times diffrac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d58db665b22bf519a221dc02ff861d17
https://pubmed.ncbi.nlm.nih.gov/19859260
https://pubmed.ncbi.nlm.nih.gov/19859260
Autor:
Jim J. Chang, Bruce E. Warner
Publikováno v:
Applied Physics Letters. 69:473-475
We have investigated the dynamics of high‐radiance visible‐laser interaction with a metal vapor plasma during laser ablation of aluminum and carbon steel. The experiment with a copper vapor laser reveals strong plasma‐absorption induced ignitio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c88778894b572b866f8ab0ff9f465b2c
https://doi.org/10.1063/1.118144
https://doi.org/10.1063/1.118144
Autor:
James B. Richards, Jim J. Chang, James R. Carlson, Robert W. Derlet, Bill W. Colston, Rupa S. Rao, Steven R. Visuri, Mary T. McBride, F. Chuang
Publikováno v:
The 15th Annual Meeting of the IEEE Lasers and Electro-Optics Society.
Summary form only given. We have developed a prototype system for reducing Luminex based immunoassay technology to a portable, customizable platform that can perform multiplexed assays on location - independent of clinical laboratory support. In prin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f3a01e4d9bc15870cd4e1b854150e11
https://doi.org/10.1109/leos.2002.1134080
https://doi.org/10.1109/leos.2002.1134080
Autor:
William T. Silfvast, Neal R. Fornaciari, Jim J. Chang, Bruce C. Long, Daniel R. Folk, Steven E. Gianoulakis, Gregory M. Shimkaveg, John E. M. Goldsmith, Kenneth D. Stewart, Donna J. O'Connell, Glenn D. Kubiak
Publikováno v:
SPIE Proceedings.
We report on the development of an electric capillary discharge source that radiates with comparable efficiency at both 13.5 nm and 11.4 nm, two wavelengths of interest for EUV lithography. The discharge source is comprised of a low- pressure, xenon-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5447ad755d289b22b34918fdfb1f49a7
https://doi.org/10.1117/12.390047
https://doi.org/10.1117/12.390047
Publikováno v:
Laser Applications in Microelectronic and Optoelectronic Manufacturing IV.
We have investigated the emission spectra of a carbon plume generated from graphite by a visible pulsed laser for diamond-like coatings (DLC). The laser utilized was a 300- watt class copper vapor laser with a pulse duration of approximately 40 ns. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7dfbf5f6c239561237b6017ea74b3a7
https://doi.org/10.1117/12.352710
https://doi.org/10.1117/12.352710
Publikováno v:
Advanced Solid State Lasers.
We have demonstrated a compact and efficient diode-pumped Nd:YAG laser. This laser uses compound parabolic concentrators to transport diode radiation into a highly enclosed laser pump chamber. We have demonstrated 451 W of CW IR output with an optica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::18900f5db84c078581057d6ae1b50d59
https://doi.org/10.1364/assl.1998.hp2
https://doi.org/10.1364/assl.1998.hp2
Autor:
Jim J. Chang, Charles D. Boley, Ernest P. Dragon, Bruce E. Warner, Mikael D. Martinez, Havstad, William McLean
Publikováno v:
Pulsed Metal Vapour Lasers ISBN: 9789401072472
A growing appreciation has developed in the last several years for the copper vapor laser because of its utility in ablating difficult materials at high rates. Laser ablation at high rates shows promise for numerous industrial applications such as th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d58fac18bf875ffeed208dcab24d88d
https://doi.org/10.1007/978-94-009-1669-2_34
https://doi.org/10.1007/978-94-009-1669-2_34
