What do these variables represent in an equation for thin film reflectivity?

[mxyplizk]

Homework Statement

I'm just trying to figure out what all the variables are in an equation I'm using for thin film reflectivity. Any advice beyond that would be appreciated though...

Homework Equations

r_{thin slab}=(-i * $$\lambda$$ * $$\rho$$ * r₀ * $$\Delta$$)/(sin(_$$\alpha$$))

note: alpha here isn't an exponent, it's sin(alpha), I just couldn't fix the formatting for some reason.

The Attempt at a Solution

r_{thin slab} is the reflectivity. i is the imaginary number i. lambda is the wavelength. rho is the density. r₀ is the Thomson scattering length. alpha is the angle the light makes with the surface of the thin film as it hits it. I'm not sure what delta is, though...does that have something to do with the size of the thin film? Because apparently that's supposed to be a part of this equation...I really appreciate any and all help!

 

[anathema]

Hi there,

It looks like you have a pretty good understanding of the variables in your equation. As you mentioned, rthin slab is the reflectivity, i is the imaginary number i, lambda is the wavelength, rho is the density, r0 is the Thomson scattering length, and alpha is the angle of incidence.

Delta, in this case, represents the thickness of the thin film. It is an important variable because it affects the reflectivity of the film. The thicker the film, the more light is reflected, while a thinner film will allow more light to pass through.

In addition to understanding the variables, it's important to also consider the physical principles behind the equation. In this case, the equation is describing the reflectivity of a thin film, which is influenced by factors such as the thickness of the film, the density of the material, and the angle of incidence.

I would recommend doing some research on thin film reflectivity to gain a deeper understanding of the principles behind the equation and how each variable affects the overall reflectivity. Additionally, you may want to consider consulting with your peers or a professor for further clarification and guidance on your homework.

I hope this helps and good luck with your studies!