When a soap film gets *very* thin, down to a molecular lengths scale, its reflection across the entire visible spectrum becomes zero. Why? Explain. Why is it not the other two answers?
a. | It is too thin to reflect light. |
b. Reflections from the front and back surface are out of phase, and there is essentially no path difference. |
c. The molecular length scale is about 1/4 of optical wavelengths, resulting in destructive interference. |
When a soap film gets *very* thin, down to a molecular lengths scale, its reflection across...
The default setting is a thin film of glass(n = 1.5) with air (n = 1)on both sides.The starting wavelength is 652 nm and the starting thickness is 544 nm. Use these starting values for this next set of questions. 1. Is there a phase shift on the front (left) interface? On the back (right) interface in the simulation?Justify why there is/isn’t a phase shift at each interface. 2. How does the wavelength in the film (glass) compare to the...