Od-2 Diffraction (Using Grating 4000, 8000, 15000 lines/inch)
Published: Wednesday 15 March 2006 - Updated: Monday 28 March 2011
Aim
To demonstrate the diffraction pattern accompanying a transmission grating with thousands of lines to the inch.
Apparatus
- Laser
- optical bench
- Diffraction grating
Diagrams
Click on pictures to enlarge.
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Line Diffraction Diagram |
Description
The optical arrangement shown above is set up in midtheatre. The resulting diffraction patterns are large and bright enough to be seen in a darkened lecture theatre.