Multi-Slit Diffraction & Interference

Wave optics simulation from 1 to 50 parallel slits

Simulation Parameters

10
1 (Single Slit) 25 50 (Grating)
40.0 μm
10 μm 80 μm 150 μm
8.0 μm
2 μm 13.5 μm 25 μm
632.8 nm
380 nm (UV/Violet) 550 nm (Green) 750 nm (Red)
1.50 m
0.5 m 1.75 m 3.0 m
Diffraction Physics
Fringe Spacing (Δy):
23.7 mm
Envelope Zero (y₀):
118.7 mm

Simulated Screen Intensity Pattern

Width of view: ±80 mm

Intensity Distribution Graph ($I(\theta)$ vs Position $y$)

Position relative to center (y)