- #1
Anton Alice
- 68
- 1
Hello,
again a simple question:
consider a mirror, with a transparent layer (index of refraction n) of certain thickness on it.
If a ray is reflected by the mirror, while the mirror is moved normal to the plane, then one could observe a dopplershift.
But what happens if the mirror is fixed, while the thickness of the transparent layer changes with time?
I would equivalently expect a dopplershift, since the optical path length changes. But it's a little difficult to imagine, how the reflected wave form gets stretched/contracted.
again a simple question:
consider a mirror, with a transparent layer (index of refraction n) of certain thickness on it.
If a ray is reflected by the mirror, while the mirror is moved normal to the plane, then one could observe a dopplershift.
But what happens if the mirror is fixed, while the thickness of the transparent layer changes with time?
I would equivalently expect a dopplershift, since the optical path length changes. But it's a little difficult to imagine, how the reflected wave form gets stretched/contracted.