1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Total internal reflection for a long time

  1. Jan 23, 2014 #1
    Imagine a square prism made from some material with such an index of refraction and surrounded by a substance of such index of refraction so that light rays entering the prism and hitting one of the internal sides of the prism at an angle of incidence 45° experience total internal reflection. And since the internally reflected light rays reflect at an angle of also 45°, and the prism is a square one (90°) ,they also get internally reflected at the adjacent side of the square prism. And this goes on until all the light is slowly absorbed by the material of the prism.


    I know it's the same idea as the optical fibers, but I am wondering what we would see in such a prism. Will light going in a loop show interference patterns? and if it doesn't, How bright are the trapped rays going to be combined before the first of them is absorbed ?
     
    Last edited: Jan 23, 2014
  2. jcsd
  3. Jan 23, 2014 #2

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

  4. Jan 23, 2014 #3
    Please note that in my question i assume the incident ray to be from a monochromatic source with great enough coherent time (say a very good laser ).
     
  5. Jan 24, 2014 #4

    CWatters

    User Avatar
    Science Advisor
    Homework Helper

    Then yes you might get interference.
     
  6. Jan 24, 2014 #5

    Claude Bile

    User Avatar
    Science Advisor

    Google "Whispering Gallery modes".

    Claude.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Total internal reflection for a long time
Loading...