Light Refraction through a Dielectric (Simulation)

FDTD simulation of a beam of light as it hits a dielectric surface. Inside the dielectric, the speed of light is slower, so the wavefronts shift direction. Also note how the energy that does not enter the dielectric is reflected away at the same angle as the incidence.

Frequency is 6.0 MHz, the angle of incidence is 45-degrees, and the dielectric constant is 4.

Category:

Education

Tags:

• FDTD
• refraction
• simulation
• EM
• waves
• electromagnetics
• education

[blusterhash]

How did you managed to simulate non divergent beam? Is there some kind of waveguide or distribution of the amplitude on the source?

[nageljr]

@blusterhash

The beam is tapered with a cosine function. This makes it more directive and removes the ugly side-lobes.

[charkopolis]

Glorious response for rainbow conspiracy lady.