Alain Haché

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Alain Haché
Born 14 December 1970 (1970-12-14) (age 46)
Tracadie, New Brunswick, Canada
Residence Moncton, New Brunswick, Canada
Citizenship Canadian
Fields Physics, Photonics, Optics
Institutions Université de Moncton
Alma mater B.Sc. – Université de Moncton
Ph.D – University of Toronto
Notable students Louis Poirier
Known for Supraluminal phenomena in photonic crystals
Canada Research Chair in Photonics 2003–2013

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.

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. Since this speed represents the group velocity but not the signal velocity, no energy or information was actually traveling faster than light.


  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". 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. 

Further reading[edit]

External links[edit]