Fresnel Reflection calculator
Reflectance at normal incidence between two media.
Category: Photonics
Formula: R = ((n₁-n₂)/(n₁+n₂))²
Inputs
| Input | Parameter | Unit | Default |
|---|---|---|---|
| n₁ | n1 | 1 | |
| n₂ | n2 | 1.5 |
Result with the default inputs
- Reflectance: 4 %
- Transmittance: 96 %
Open it with your own values: put each input in the address as a parameter, for example /calculators/fresnel-reflection?n1=1. A unit other than the listed one goes in <parameter>_unit.
Read more: Wikipedia: Fresnel equations