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Name: Christopher S.
Status: educator
Age: 50s
Location: N/A
Country: N/A
Date: 1/13/2003

Will a single beam of photons refract when entering a medium of a different density? Thanks for your help.

Yes. A single photon will refract.

Tim Mooney

Christopher, A single beam of photons will refract. The simplest example is a laser. A laser passing through a lens will bend.

Dr. Ken Mellendorf
Physics Instructor
Illinois Central College

Yes, but it is a lot more subtle than you might think. You might look for a book entitled "Schrdinger's Kittens" for a fascinating tale of the development of quantum theory -- with no math needed -- and the perplexity and mystery of the particle / wave duality of light. It truly reveals a quote attributed to Richard Feynman, "If someone says that they understand quantum mechanics, they don't understand the problem!"

Vince Calder

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