This calculator will help you computes the phase matching for SHG

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Negative uniaxial crystal

$\theta= arcsin[(\frac{n_c^{2w}}{n_0^w})^2 \frac{(n_0^{2w})^2 - (n_0^w)^2}{(n_0^{2w})^2 - (n_c^{2w})^2}]^{1/2}$

Postive uniaxial crystal

$\theta= arcsin[(\frac{n_c^{w}}{n_0^2w})^2 \frac{(n_0^w)^2 - (n_0^{2w})^2}{(n_0^w)^2 - (n_c^w)^2}]^{1/2}$

Input

Choose crystal and mode:
Fundamental frequency laser wavelength :
nm

Input
Choose crystal and mode:
Starting laser wavelength :
nm
End laser wavelength :
nm

Output
Fundamental frequency light refractive index:

phase matching angle:
°

Output

XY Plane:

Fundamental frequency light refractive index:
phase matching angle:
°

XZ Plane:

Fundamental frequency light refractive index:
phase matching angle:
°

YZ Plane:

Fundamental frequency light refractive index:
phase matching angle:
°