6D10.41 - Fresnel Biprism

See paragraph one in the procedure section.
Code Number:
Demo Title:
Fresnel Biprism
Diffraction of Waves
Area of Study:
Fresnel Biprism, Laser, Spatial Filter.

Place the Fresnel biprism in front of the laser / spatial filter unit.  A very nice interference pattern will appear on the screen.  Its size can be adjusted by moving the biprism closer or farther away from the spatial filter.

  • Thomas B. Greenslade Jr. , "Interference Fringes Using a Fresnel Biprism and a Laser", TPT, Vol. 43, May 2005, p. 310. 
  • J. J.  Veit, D. J. Solarlek, "Interference Fringes Using a Fresnel Biprism and a Laser", TPT, # 7, Oct. 1975, p. 413.
  • V. R. Potnis, An-Ti Chai, "A Proposal for Naming the Units of Linear and Angular Momentum", AJP, Vol. 40, #5, May 1972, p. 767.
  • A. R. Venkataraman, "The Refractive Index of a Biprism", AJP, Vol. 39, #9, Sept. 1971, p. 1093.
  • "Interference Young's Experiment", DICK and RAE Physics Demo Notebook, 1993.
  • T. Kallard, "Interference with Fresnel's Biprism", Exploring Laser Light, p. 113.
  • Wallace A. Hilton, "I-3, Fresnel Biprism", Experiments in Optical Physics, p. 21.

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