{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

257-MP5 and MP6 Intro rev 1

# 257-MP5 and MP6 Intro rev 1 - MP5/MP6 Physical Optics PHY...

This preview shows pages 1–4. Sign up to view the full content.

MP5/MP6 Physical Optics PHY 257 In this lab you will complete the following tasks: a. Study the diffraction pattern from a single slit b. Study the diffraction pattern from a double slit c Study the diffraction pattern from a circular aperture c. d. Study the diffraction pattern from a grating S d h diff i f f h l e. Study the diffraction pattern from a square array of holes (page 1)

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
MP5/Section V-1a: Diffraction from a single slit laser θ screen L Single slit Optical bench (top view) Use the setup shown in the figure above. Use a single slit with width W = 0 04 mm Use L = 200 cm Place a paper sheet on the width W = 0.04 mm. Use L = 200 cm. Place a paper sheet on the screen and trace the diffraction pattern shown in the figure below Single slit diffraction pattern (page 2a)
Single slit diffraction pattern x x 1 n=1 x 2 n =2 O x -1 n= -1 x -2 n= -2 x -3 n= -3 x 3 n =3 The minima in intensity of the diffracted light I occur at for = 1, 2, 3,... If we plot versus n we get a straight line n n n L x n W x λ = ± ± ± x 1 x 2 x 3 x -1 x -2 x -3 with slope If we solve for we get: L S W W λ = L W λ = x for we get: exp exp Compare with the manufacturer's value of = 0.04 mm.

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}