Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Marc Levesque"'
Autor:
Marc Levesque, Virginia Foot, Simon Turbide, Henrique Weber, Camilla Robinson, Louis St-Laurent, François Babin
Publikováno v:
Chemical, Biological, Radiological, Nuclear, and Explosives (CBRNE) Sensing XXI.
A standoff biothreat detection and identification system for scanning large areas was designed, built and tested. The sensor is based on two wavelength ultraviolet light induced fluorescence (UVLIF) measured from a distance. The concept calls for mul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2d494b747d25734e70b8e862618b29bd
https://doi.org/10.1117/12.2560078
https://doi.org/10.1117/12.2560078
Autor:
Bruno Labranche, Alain Cournoyer, Marc Levesque, Sebastien Deshaies, Rosalie Forest, Eric Savard
Publikováno v:
Physics Procedia. 5:139-144
A method for precision welding of glass pieces has been developed and tested for the fabrication of roof top assemblies. It allows joining of glass pieces with a very high level of angle accuracy while providing high stiffness and good stability over
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0ce275e727a7c194273585212559c2d1
https://doi.org/10.1016/j.phpro.2010.08.038
https://doi.org/10.1016/j.phpro.2010.08.038
Autor:
David Gay, Alain Cournoyer, Pascal Deladurantaye, Martin Briand, Vincent Roy, Bruno Labranche, Marc Levesque, Y. Taillon
Publikováno v:
SPIE Proceedings.
We demonstrate the usefulness of INO's pulse-shaping fiber laser platform to rapidly develop complex laser micromachining processes. The versatility of such laser sources allows for straightforward control of the emitting energy envelop on the nanose
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::99457980aa9c7bd10358eb93337f6e6f
https://doi.org/10.1117/12.839707
https://doi.org/10.1117/12.839707
Autor:
Pascal Deladurantaye, David Gay, Alain Cournoyer, Vincent Roy, Bruno Labranche, Marc Levesque, Yves Taillon
Publikováno v:
SPIE Proceedings.
We report on recent advances in laser material processing using a novel pulsed fiber laser platform providing pulse shape agility at the nanosecond time scale and at high repetition rates. The pulse shapes can be programmed with a time resolution of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67e338cb1a166f6f8df22dba94491a9c
https://doi.org/10.1117/12.809532
https://doi.org/10.1117/12.809532
Publikováno v:
Photonics North 2004: Photonic Applications in Astronomy, Biomedicine, Imaging, Materials Processing, and Education.
We used an excimer laser (193 nm), a femtosecond laser (775 nm) and a CO2 laser (10.6 µm) to drill cylindrical holes in fused silica optical fibers and in glass micro-pipettes. CO2 laser-drilling using tip processing results in tapered holes with la
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dab99c9933f682ab7647b673164f67a7
https://doi.org/10.1117/12.566975
https://doi.org/10.1117/12.566975
Publikováno v:
Photonics North 2004: Photonic Applications in Astronomy, Biomedicine, Imaging, Materials Processing, and Education.
Ablation of fused silica using the Gaussian irradiance profile of the TEM 00 mode of a CO 2 laser is a very efficient wayfor micromachining features up to ten times smaller than the beam diameter. A series of laser-etched V-groovessequentially shifte
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::916f020d16d264c3cfd70a9a9eb911ed
https://doi.org/10.1117/12.566966
https://doi.org/10.1117/12.566966
Publikováno v:
International Congress on Applications of Lasers & Electro-Optics.
Fused silica exhibits attractive thermophysical properties for CO2 laser processing and the micromachining of optical fibers can benefit from this peculiar laser-matter interaction. Applications like laser cleaving of specialty optical fibers and las
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::084fa88235a2d8ec58a5b157ae91e9b3
https://doi.org/10.2351/1.5060355
https://doi.org/10.2351/1.5060355
Publikováno v:
Optical Amplifiers and Their Applications.
The performance of dynamic DWDM transmission systems is often limited by the sensitivity of constituent EDFA's to optical power transients. The effects of transients in EDFA cascades are described and resulting system penalties are quantified.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc49e3a5a500f609132184dd0ac9c404
https://doi.org/10.1364/oaa.2003.md03
https://doi.org/10.1364/oaa.2003.md03
Publikováno v:
SPIE Proceedings.
Night vision capability has become an indispensable tool for military and civilian surveillance operations. Low-light- level television (LLLTV) and Forward-Looking-IR (FLIR) devices have long been used for these applications. Nevertheless, both have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27eb039f1682f49bac4762ee746d0a35
https://doi.org/10.1117/12.354523
https://doi.org/10.1117/12.354523