Derive Fresnel equations. Define reflectance and transmittance.
Understand the Problem
The question asks to derive Fresnel equations, and define the terms reflectance and transmittance. Fresnel equations describe the reflection and transmission of light when moving between media having different refractive indices. Reflectance is the ratio of the reflected power to the incident power, while transmittance is the ratio of the transmitted power to the incident power.
Answer
Fresnel equations relate to light reflection/transmission between media. Reflectance is the ratio of reflected to incident power, while transmittance is the transmitted to incident power ratio.
Fresnel equations describe the reflection and transmission of light at an interface between different optical media. Reflectance is the ratio of reflected power to incident power. Transmittance is the ratio of transmitted power to incident power.
Answer for screen readers
Fresnel equations describe the reflection and transmission of light at an interface between different optical media. Reflectance is the ratio of reflected power to incident power. Transmittance is the ratio of transmitted power to incident power.
More Information
The Fresnel equations were developed by Augustin-Jean Fresnel to describe light behavior when moving between media with different refractive indices. The equations account for the light's polarization.
Tips
The polarization of the light must be taken into account, and the equations will change depending on the polarization (s or p).
Sources
- Fresnel equations - Wikipedia - en.wikipedia.org
- Fresnel Equations: What are they? (Derivation & Explanation) - electrical4u.com
- Fresnel Equations - doc.comsol.com
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