Alain Haché

Alain Haché (born 14 December 1970, in Tracadie, New Brunswick) 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
Born14 December 1970 (1970-12-14) (age 50)
Tracadie, New Brunswick, Canada
CitizenshipCanadian
Alma materB.Sc. – Université de Moncton
Ph.D – University of Toronto
Known forSupraluminal phenomena in photonic crystals
Canada Research Chair in Photonics 2003–2013
Scientific career
FieldsPhysics, Photonics, Optics
InstitutionsUniversité de Moncton
Notable studentsLouis Poirier

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
  1. "Alain Haché" (in French). Université de Moncton. Retrieved 2010-11-27.
  2. "Canada Research Chair in Photonics – Alain Haché". Canada Research Chairs. 2003. Archived from the original on 2004-07-13.
  3. Alain Haché (2002). The Physics of Hockey. Baltimore (MD): Johns Hopkins University Press. ISBN 0-8018-7071-2.
  4. Alain Haché (2015). Slap Shot Science. A Curious Fan's Guide to Hockey. Baltimore (MD): Johns Hopkins University Press. ISBN 9781421417929.
  5. Katie Pennicott (2002). "Electrical pulses break light speed record". PhysicsWorld.com. Institute of Physics.
  6. Alain Haché, Louis Poirier (2002). "Long-range superluminal pulse propagation in a coaxial photonic crystal". Applied Physics Letters. 80 (3): 518. Bibcode:2002ApPhL..80..518H. doi:10.1063/1.1432760. Archived from the original on 2013-02-23.

Further reading


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