AOI Shift Simulator

Bandpass filter center wavelength shift with angle of incidence

Inputs

Center wavelength λ₀ (nm) Effective refractive index n_eff Angle of incidence θ (deg) θ slider

Incident medium is air: n₀ = 1.000 (fixed).

Shifted wavelength λ_θ (nm)

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Shift (nm)

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Shift (%)

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Formula

λ_θ = λ₀ · √( 1 − ( n₀ / n_eff )² · sin² θ )