Od-2 Diffraction (Using Grating 4000, 8000, 15000 lines/inch)

Aim

To demonstrate the diffraction pattern accompanying a transmission grating with thousands of lines to the inch.

Apparatus

Laser
Optical bench
Diffraction grating

$Diffraction Grating$ $Diffraction Diagram$

Difraction Grating Setup and Diagram

Description

The optical arrangement shown above is set up in the front of the theatre. The resulting diffraction patterns are large and bright enough to be seen in a darkened lecture theatre.

Videos

Safety Notes

Diffraction Grating (4000, 8000, 15000 lines per inch) SOP-11