Total internal reflection of a violet laser in a pane of glass. The beam appears yellow due to its wavelength being short enough to cause fluorescence in the glass, and would be invisible if it werent for this.

    by legrosbordel

    3 Comments

    1. A thought, they call it “total” internal reflection, but theres very obviously some light leaking each time it bounces (zoom in)

    2. Fun fact: companies deploying blue laser for 3D scanning usually avoid purple to limit UV amount and make it safer for the users.

      Btw, beautiful picture.

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