Chapter
24 & 25
Geometrical
Optics &
Physical Optics
Diffraction
Gratings
Principal
Maxima:
(17)
where
d is the separation between lines and
Example
25
Find
the slit spacing necessary for 450 nm light to have a first order
(m = 1) principal maximum at 15°.
Solution:
Example
26
When
546 nm light passes through a particular diffraction grating, a second
order principal maximum is observed at an angle of 16°. How many
lines per centimeter does this grating have?
Solution:
Calculate
d:
Convert
to centimeters:
Find
the inverse:
Holography
The
End |