Optics > Interference > Two Source Interference

DCS# 6D10.41

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FRESNEL BIPRISM

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APPARATUS
 

Fresnel biprism	202-21-B5
laser	202-21-B6
ground glass	202-21-D4
video camera	202-09-C4

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DESCRIPTION Shine laser beam onto biprism a few centimeters away.  Project pattern onto a ground glass screen a couple of meters away.  Display the pattern using the video camera with iris stopped down.

REFERENCE

TPT 13, 413-414 (1975).