Skip Navigation
M1-33. Laser Difffraction - Phonograph Record
Search
- Sections
- A. General Materials & Mathematics
- B. Statics
- C. Kinematics & Dynamics
- D. Rotational Mechanics
- E. Gravitation & Astronomy
- F. Fluid Mechanics
- G. Vibrations & Mechanical Waves
- H. Sound
- I. Thermodynamics
- J. Electrostatics & Magnetostatics
- K. Electromagnetic Principles
- L. Geometrical Optics
- M. Wave Optics
- N. Spectra & Color
- O. Vision
- P. Modern Physics
HomeM. Wave OpticsM1. Interference And Diffraction - Slits And GratingsM1-33. Laser Diffraction - Phonograph Record
M1-33. Laser Difffraction - Phonograph Record
Purpose
To demonstrate interference of a laser beam by a type of grating.
Equipment
Laser (on cart) with phonograph record.
Images
Description
This demonstration uses an old 33 1/3 RPM vinyl disc recording to produce an interference pattern with a laser beam. Hold the record at an angle with respect to the incoming laser beam and look for the diffraction pattern on the wall or the ceiling.
References
Scott R. Welty, Long-Playing Diffraction Grating, TPT 19, 187, (1981).
-
-
See pagesm2. diffraction circular
-
See pagesm3. interferometers
-
See pagesm4. thin film interference
-
-
See pagesm6. holograms
-
See pagesm7. polarization & scattering
-
See pagesm8. optical activity & birefringence
-
See pagesm9. elliptical polarization
-
-
See pagesm2. diffraction circular
-
See pagesm3. interferometers
-
See pagesm4. thin film interference
-
-
See pagesm6. holograms
-
See pagesm7. polarization & scattering
-
See pagesm8. optical activity & birefringence
-
See pagesm9. elliptical polarization
Physics Lab Demos