Alain Haché (born 1970) is an experimental physicist, a professor at the University of Moncton, Canada.[1] From 2003 to 2013 he held the Canada Research Chair in photonics.[2] He is also the author of The Physics of Hockey [3] and Slap Shot Science,[4] two popular science books on ice hockey.
Alain Haché | |
|---|---|
| Born | 1970 (age 53–54) Tracadie, New Brunswick, Canada |
| Alma mater | B.Sc. – Université de Moncton Ph.D – University of Toronto |
| Known for | Supraluminal phenomena in photonic crystals Canada Research Chair in Photonics 2003–2013 |
| Scientific career | |
| Fields | Physics, photonics, optics |
| Institutions | Université de Moncton |
| Notable students | Louis Poirier |
Haché was born in Tracadie, New Brunswick in 1970.[citation needed] In 2002, he and undergraduate student Louis Poirier transmitted faster-than-light electrical pulses through a 120-metre long "photonic crystal" made of coaxial cables of alternating characteristic impedance (12 pairs of 50 Ω and 75 Ω cables).[5][6] The experiment showed that the pulse envelope was recreated at the end of the cables at a speed of >3 c. This speed represents the group velocity, but the amplitude of the signal also drops in such a way that the energy transmitted never exceeds, at any given time, the energy that would have been transmitted by same pulse travelling in a vacuum.
References
edit- ^ "Alain Haché" (in French). Université de Moncton. Archived from the original on 2011-03-09. Retrieved 2010-11-27.
- ^ "Canada Research Chair in Photonics – Alain Haché". Canada Research Chairs. 2003. Archived from the original on 2004-07-13.
- ^ Alain Haché (2002). The Physics of Hockey. Baltimore (MD): Johns Hopkins University Press. ISBN 0-8018-7071-2.
- ^ Alain Haché (2015). Slap Shot Science. A Curious Fan's Guide to Hockey. Baltimore (MD): Johns Hopkins University Press. ISBN 9781421417929.
- ^ Katie Pennicott (2002). "Electrical pulses break light speed record". PhysicsWorld.com. Institute of Physics.
- ^ Alain Haché, Louis Poirier (2002). "Long-range superluminal pulse propagation in a coaxial photonic crystal". Applied Physics Letters. 80 (3): 518–520. Bibcode:2002ApPhL..80..518H. doi:10.1063/1.1432760.
Further reading
edit- Nicole Visschedyk (6 September 2010). "Researcher earns healthy grant from innovation foundation". Telegraph-Journal. p. B1. Retrieved 2010-12-01.[permanent dead link]
External links
edit- Alain Haché's webpage Archived 2011-03-09 at the Wayback Machine @ Université de Moncton
- Alain Haché's scientific contributions @ Google Docs
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