Brewster's Angle Calculator
Determine Brewster's angle (polarizing angle) for an optical interface. At this angle, the reflected beam is completely s-polarized and the reflected and refracted beams are perpendicular.
Inputs
Results
Brewster's Angle
56.31°
Refraction Angle
33.69°
s-pol Reflectance
14.79%
Brewster's Angle Results
| Parameter | Value |
|---|---|
| Brewster's Angle θB | 56.3099° |
| Refraction Angle at θB | 33.6901° |
| θB + θ_refracted | 90.0000° (should be 90°) |
| p-Polarization Reflectance | 0.0000% (by definition) |
| s-Polarization Reflectance | 14.7929% |
| n₁ (incident) | 1 |
| n₂ (transmitted) | 1.5 |
| Formula | θB = arctan(n₂/n₁) |
Frequently Asked Questions
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