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Benefits of using a metal surface with glass/air boundary?

  • 23-11-2011 8:29pm
    #1
    Smythe
    Registered Users, Registered Users 2 Posts: 434 ✭✭


    I was looking at this webpage:
    http://www.ap.smu.ca/demos/index.php?option=com_content&view=article&id=120&Itemid=85

    I was wondering, when n2(imag)=0 what would be the merits of using a metal surface and a glass/air boundary (ie internal reflection in a prism) as a mirror surface?

    Also, in what situations might it be important to achieve the maximum reflectance possible?

    Thank you. :)


Comments

  • #2
    FarmerGreen
    Registered Users, Registered Users 2 Posts: 1,134 ✭✭✭FarmerGreen


    1) The metal keeps muck off the glass.
    2) In a laser cavity.


  • #3
    Smythe
    Registered Users, Registered Users 2 Posts: 434 ✭✭Smythe


    FarmerGreen wrote: »
    1) The metal keeps muck off the glass.
    2) In a laser cavity.
    Okay; thank you for that.

    May I ask what other instances, other than a laser cavity, is grime kept off glass using this principle?


  • #4
    FarmerGreen
    Registered Users, Registered Users 2 Posts: 1,134 ✭✭✭FarmerGreen


    Damned if I know, I've never seen it used.
    Anyway, if optics floats your boat, Google OSLO LT or OSLO EDU.
    Endless hours of fun, LT is better because you can use schmidt plates.
    Roger Ceragioli wrote an OSLO tutorial, cant see it on the net anymore, PM if you want a copy, its in the public domain.


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