 |
 | Home | Contact Us | FAQ | Search & Site Map | Link to Us |
 | Sign In | Join | Other 45 Sites in Network |
Natural Science Forum / Physics / Particle Physics / September 2007Photons through glass question
When light passes through glass, is it described as: 1) The quantum field is modified because of the glass and a single interaction occurs - light source EM particle to final other EM particle. Sum of all paths but with the glass eliminating some of the more direct ones. or 2) A complex set of absorption retransmission series of events within the glass. or 3) Something else? Thanks, Ned Phipps > When light passes through glass, is it described as: > [quoted text clipped - 7 lines] > 2) A complex set of absorption retransmission series of events within the > glass. I think either of the above could be made to work in a model. Don't know that there needs to be a definitive answer one way or the other physically. Is that photon a particle or a wave? Same issue. > or > > 3) Something else? > > Thanks, > Ned Phipps >> When light passes through glass, is it described as: >> [quoted text clipped - 14 lines] > know that there needs to be a definitive answer one way or the other > physically. Is that photon a particle or a wave? Same issue. Solution: It's a wavicle. ;-) IOW, why even ask the question? If you look for particle properties you will get particle properties; if you look for wave properties, you will get wave properties. Simple quantization of a source free EM field shows that it has both wave and particle properties. And the particle properties are contained wholly in the time dependence. Best, Fred Diether Moderator sci.physics.foundations >>> When light passes through glass, is it described as: >>> [quoted text clipped - 25 lines] > Fred Diether > Moderator sci.physics.foundations I believe these answers are basically saying that the photon traveling through empty space also acts as a complex set of absorption retransmissions. However, the photon's existence is based on a charged particle to charged particle interaction. I don't believe the term "wavicle" is part of QFT. Why ask? Well, I'm actually interested in the effect on the glass - in particular, the energy and momentum effect. What is the effect of pulsing a laser through glass? If there is no interaction with the glass, itself, then there is no effect. But the light changes direction, so there /must/ be an effect. So the initial question is actually not just an "is it a wave or a particle" question. Ned > >>> When light passes through glass, is it described as: > [quoted text clipped - 30 lines] > retransmissions. However, the photon's existence is based on a charged > particle to charged particle interaction. You don't think there can be "free" photons? > Why ask? Well, I'm actually interested in the effect on the glass - in > particular, the energy and momentum effect. What is the effect of pulsing a > laser through glass? If there is no interaction with the glass, itself, > then there is no effect. But the light changes direction, so there /must/ > be an effect. So the initial question is actually not just an "is it a wave > or a particle" question. There is no "something else". To answer your original question. There is definitely an interaction of light with the glass. Have you ever read Feynman's QED? If not, you should read it. Best, Fred Diether Moderator sci.physics.foundations > >> When light passes through glass, is it described as: > [quoted text clipped - 21 lines] > particle properties. And the particle properties are contained wholly > in the time dependence. Wrong, a fot?n has no particulal properties. quantisation != particulisation >> >> When light passes through glass, is it described as: >> [quoted text clipped - 23 lines] > >Wrong, a fotòn has no particulal properties. So, either you know much more than all those particle physicists who write text books about QM, or you're a crackpot. >quantisation != particulisation If you've got it all figured out, why don't you submit a paper to Physics Review or Science or Nature?  SignatureAl in St. Lou > >> >> When light passes through glass, is it described as: > [quoted text clipped - 26 lines] > So, either you know much more than all those particle physicists who > write text books about QM, or you're a crackpot. How is that? > >quantisation != particulisation > > If you've got it all figured out, why don't you submit a paper to > Physics Review or Science or Nature? I'v got nothing, illiterate. This is not as seriose as the fencepost error, but more lik whether the week should begin with Monday or Sunday (Monday) or the year with January or March (March). -Aut > When light passes through glass, is it described as: > > 1) The quantum field is modified because of the glass and a single > interaction occurs - light source EM particle to final other EM particle. > Sum of all paths but with the glass eliminating some of the more direct > ones. No micrscopic theories unable, you need the velocity of light at least and thats caused by index of refracrion. > or > > 2) A complex set of absorption retransmission series of events within the > glass. No, think on weak absorbing glasses or weak absorbing frequencies. > or > > 3) Something else? So the answer is and Feynman saw it similar: Its the index of refraction. Absorbing glass: index complex ! Macroskopic Electrodyxnamics in other words. Josef > Thanks, > Ned Phipps |
Reply to this Message |
 Sign In
 Join
 My Latest Posts My Monitored Threads My Blog My Photo Gallery My Profile My Homepage Start New Thread Enable EMail Alerts Rate this Thread
|
©2009 Advenet LLC Privacy Policy - Terms of Use
This website includes both content owned or controlled by Advenet as well as content owned or controlled by third parties.