Interference due to two slits¶
If two monochromatic waves of the same frequency are combined in the Young scheme, then it is possible to approximate the optical travel difference between the two waves using the position in the interference picture, the distance between the slits and the distance to the picture.
Conditions:
Two monochromatic waves of the same frequency.
\(d \ll l, x \ll l\), see symbols below for reference;
The slits should be positioned symmetrically relative to the axis passing through the radiation source, while this axis of symmetry should be perpendicular to the plane on which the interference pattern will be.
Links:
- travel_difference¶
Optical travel difference for two coherent waves. See
optical_distance.- Symbol:
Lambda- Latex:
\(\Lambda\)
- Dimension:
length
- coordinate¶
Coordinate (
position) in interference picture, measured from the center of symmetry.- Symbol:
x- Latex:
\(x\)
- Dimension:
length
- distance_between_slits¶
euclidean_distancebetween slits.- Symbol:
d- Latex:
\(d\)
- Dimension:
length
- distance_to_picture¶
euclidean_distancefrom slits to picture.- Symbol:
l- Latex:
\(l\)
- Dimension:
length
- law¶
Lambda = x * d / l- Latex:
- \[\Lambda = \frac{x d}{l}\]