Description
Named for Thomas Young’s classic proof of the wave theory of light in 1803. While Young’s original experiment used sunlight and calculated the average wavelength to be 550 nm, today using monochromatic and coherent light one can calculate wavelength with the following formula:
nλ = xd/L
In which, λ is the wavelength of the light
d is the separation of the slits
n is the order of maximum observed (for first order n=1)
x is the distance between the bands of light and the central maximum (also called fringe distance)
L is the distance from the slits to the screen centerpoint
These elements may be used to demonstrate Young’s Interference Fringes, Michelson’s Stellar Interferometer (for measuring the separation between double stars) or other applications requiring measurement of the separation between point sources.
Contact us for Custom Quoted Slit Width and Spacing
Specifications
(0.374in +0.000984 / -0.00197in) |
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50 µm slits : 150 µm Spacing (Center to Center) 100 µm slits : 300 µm Spacing (Center to Center) |
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(0.000512″) |
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Molybdenum (3µm) |
Slit Tolerances