Rami Arieli: "The
Laser Adventure" Pinhole Lab., Page 1
Diffraction through a Pinhole
and Single Slit
Objectives:
-
Measuring small appertures.
Using the phenomenon of diffraction of laser light through a pinhole
and a single slit, we can calculate their diameters, using the known wavelength
of the He-Ne laser.
-
Measuring unknown wavelength of
a laser.
Using the measured diameter of the pinhole, we can calculate the diode
laser wavelength.