Fringe Period of two light interference


This Calculator Will Help You To Calculate The Fringe Period of Two Light Interference of Two Plane Waves of Equal Intensity, Polarization and Frequency.

$P$ = $\frac{\lambda}{sin(\theta_1) - sin(\theta_2)}$



Incident Angle of The First Light, $\theta_1$; Incidence Angle of The Second Light, $\theta_2$; The Light Wavelength, $\lambda$;

Input
Angle of Incident of the first light $\theta_1$:
degree (°)

Angle of Incident of the first light $\theta_2$:
degree (°)

Wavelength, $\lambda$:
nm


Output
Fringe Period, P:
μm