Laser Diffraction - Wires

Purpose

To show diffraction by wires of different size.

Equipment

Laser cart, slide with three wires of different sizes.

Images

m1-04

Description

Position the three-wire slide in a holder on the cross-carriage in the laser beam to see the diffraction pattern. The pattern can be viewed directly on a distant screen or on the small screen on the laser cart, with use of the cylindrical magnifying lens if appropriate.

References

David Dutton, M Parker Givens, and Robert E. Hopkins, Some Demonstration Experiments in Optics Using a Gas Laser,◙Spectra-physics Laser Technical Bulletin, (1963). ◙David Dutton, M. Parker Givens and Robert E. Hopkins, Some Demonstration Experiments in Optics Using a Gas Laser, AJP 32,◙355-361, (1964). ◙Paul A. Young, A Student Experiment in Fresnel Diffraction, AJP 32, 367-369, (1964). ◙Haven Whiteside, Laser Optics Experiments and Demonstrations, AJP 33, 487-492, (1965). ◙Roy H. Biser, Modern Methods for the Study of Optical Diffraction, TPT 7, 158-161, (1969). ◙James Mahoney, Laser Interfer