CD / Grating Rainbow
This interactive simulator explores CD / Grating Rainbow in Optics & Light. Lines/mm and incidence: scalar grating orders painted as λ-colored fans. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Suited to beginners and first exposure to the topic. Typical context: Optics & Light.
Key terms
- grating
- rainbow
- cd grating spectrum
- optics
- light
How it works
White light hits a mirrored groove train: each wavelength peels off at its own angle — the same idea as a spectroscope slit on a disc.
More from Optics & Light
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Evanescent Wave (TIR)
Beyond θ_c: penetration depth scale in the rarer medium vs λ.
Retina & Diffraction
Order-of-magnitude θ ~ λ/D and cone spacing scale.
Pinhole Camera
Camera obscura: similar triangles, image size h_i = h_o · v/u.