Laser Diffraction - Pin Point

Purpose

Diffraction of laser beam by a pin point.

Equipment

Laser cart with mounted pin point slide.

Images

m5-11

Description

Pin point is mounted on double cross carriage for alignment with the center of the laser beam. Pattern is clearer using a cylindrical lens to focus onto screen.

References

Gordon R. Gore, Diffraction Photographs with a Laser Pointer, TPT 32, 174-175 (1994).