Alain Haché

{{Infobox scientist

|name = Alain Haché

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|birth_date = {{bya|1970}}

|birth_place = Tracadie, New Brunswick, Canada

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|fields = Physics, photonics, optics

|workplaces = Université de Moncton

|alma_mater = B.Sc. – Université de Moncton
Ph.D – University of Toronto

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|notable_students = Louis Poirier

|known_for = Supraluminal phenomena in photonic crystals
Canada Research Chair in Photonics 2003–2013

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Alain Haché (born 1970) is an experimental physicist, a professor at the University of Moncton, Canada. From 2003 to 2013 he held the Canada Research Chair in photonics. He is also the author of The Physics of Hockey and Slap Shot Science, two popular science books on ice hockey.

Haché was born in Tracadie, New Brunswick in 1970.{{cn|date=March 2022}} 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). 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

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{{cite web |title=Alain Haché |url=http://professeur.umoncton.ca/umcm-hache_alain/ |language=French |publisher=Université de Moncton |accessdate=2010-11-27 |archive-date=2011-03-09 |archive-url=https://web.archive.org/web/20110309083309/http://professeur.umoncton.ca/umcm-hache_alain/ |url-status=dead }}

{{cite web |year=2003 |title=Canada Research Chair in Photonics – Alain Haché |url=http://www.chairs.gc.ca/web/chairholders/viewprofile_e.asp?id=910&UniversityID=32&SubjectID=&DisciplineID=&Researcher=&Date_Announce=&Keyword= |publisher=Canada Research Chairs |url-status=dead |archiveurl=https://web.archive.org/web/20040713032104/http://www.chairs.gc.ca/web/chairholders/viewprofile_e.asp?id=910&UniversityID=32&SubjectID=&DisciplineID=&Researcher=&Date_Announce=&Keyword= |archivedate=2004-07-13}}

{{cite book |author=Alain Haché |year=2002 |title=The Physics of Hockey |publisher=Johns Hopkins University Press |location=Baltimore (MD) |isbn=0-8018-7071-2 |url-access=registration |url=https://archive.org/details/physicsofhockey00alai}}

{{cite book |author=Alain Haché |year=2015 |title=Slap Shot Science. A Curious Fan's Guide to Hockey |publisher=Johns Hopkins University Press |location=Baltimore (MD) |isbn=9781421417929}}

{{cite web |author=Katie Pennicott |year=2002 |title=Electrical pulses break light speed record |url=http://physicsworld.com/cws/article/news/3630 |publisher=Institute of Physics |work=PhysicsWorld.com}}

{{cite journal |author=Alain Haché, Louis Poirier |year=2002 |title=Long-range superluminal pulse propagation in a coaxial photonic crystal |journal=Applied Physics Letters |volume=80 |issue=3 |pages=518–520 |doi=10.1063/1.1432760 |bibcode=2002ApPhL..80..518H|doi-access=free }}

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External links

[http://professeur.umoncton.ca/umcm-hache_alain/ Alain Haché's webpage] {{Webarchive|url=https://web.archive.org/web/20110309083309/http://professeur.umoncton.ca/umcm-hache_alain/ |date=2011-03-09 }} @ Université de Moncton
[https://docs.google.com/Doc?id=dczr6836_13dmbzrj8h Alain Haché's scientific contributions] @ Google Docs

Category:Canadian physicists

Category:1970 births

Category:Living people

Category:Canada Research Chairs

Category:Academic staff of the Université de Moncton

Alain Haché

References

Further reading

External links