Objective:
– To illustrate total internal reflection of light.
Apparatus:
- Laser (hand held laser diode)
- 3 Light pipes
- Stand, clamp
Method:
This arrangement is analogous to the transmission of light by fiber optics. Light projected from the neon laser at one end is emitted at the other. The internal light reflections are visible inside the rod.
Total Internal Reflection Demo: Light Pipe and Optical Fibers
– Video Created at Utah State University by Professor Boyd F. Edwards and assistants.