Diffraction Grating Calculator

Calculate the diffraction angle using: $θ = \sin^{- 1} (\frac{m λ}{d})$

* Use consistent units for wavelength (λ) and grating spacing (d). For example, both in nanometers.

Step 1: Enter Parameters

Diffraction Order,

m

e.g., 1 (first order)

Wavelength,

λ

(nm):

e.g., 500 nm

Grating Spacing,

d

(nm):

e.g., 1000 nm

Calculated Diffraction Angle