Analyze the reflectance and transmittance of a single-layer optical coating.
Input the properties of the incident medium, thin film, and substrate to calculate optical performance based on Fresnel equations.
Explore common scenarios for thin film coatings by loading an example.
A standard quarter-wave anti-reflection coating using Magnesium Fluoride (MgF2) on glass for green light (550 nm) at a 0-degree angle.
n (Incident): 1.0
n (Film): 1.38
n (Substrate): 1.52
Wavelength: 550 nm
Thickness: 99.64 nm
Angle: 0 °
A quarter-wave high-reflection coating using Zinc Sulfide (ZnS) on glass for a He-Ne laser (633 nm).
n (Incident): 1.0
n (Film): 2.35
n (Substrate): 1.52
Wavelength: 633 nm
Thickness: 67.34 nm
Angle: 0 °
The same AR coating as the first example, but with light incident at a 45-degree angle, showing the difference between S and P polarization.
n (Incident): 1.0
n (Film): 1.38
n (Substrate): 1.52
Wavelength: 550 nm
Thickness: 99.64 nm
Angle: 45 °
Models a thin film of water (soap bubble) in air. This example checks the reflectance for orange light (600 nm) on a 300 nm thick bubble.
n (Incident): 1.0
n (Film): 1.33
n (Substrate): 1.0
Wavelength: 600 nm
Thickness: 300 nm
Angle: 20 °