Exploring Reflection Shifts in Beam Splitters

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In summary, the conversation discusses the lack of a phase shift in rear surface reflection due to the lower refractive index of air compared to glass. The role of the metal in the beam splitter and its effect on phase shift is also mentioned. The Jones matrix is brought up as a way to analyze the reflection shift, and the question of why there is a difference between front and rear reflection shifts is raised.
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naima
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I read this

No phase shift accompanies a rear surface reflection, since the medium behind the mirror (air) has a lower refractive index than the medium the light is traveling in (glass).

They do not talk about the metal between glass and air! Reflection occurs between glass (low index) and metal (high index)in the beam splitter. What about phase when metal is thick?
 
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For more detail see: http://relativity.livingreviews.org/open?pubNo=lrr-2010-1&page=articlesu9.html
 
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Good link
look at Jones matrix
if we rotate the front surface by 180° it becomes a rear surface.
We have R(180) = R(-180) = -I
So the Jones matrix should remain unchanged.
Why is there a difference between the front reflection shift and the rear reflection shift?
 

Related to Exploring Reflection Shifts in Beam Splitters

1. How do mirrors work?

Mirrors work by reflecting light. When light hits the smooth surface of a mirror, it bounces off at the same angle it hit the mirror. This creates a clear and accurate reflection of the objects in front of the mirror.

2. Why do mirrors reverse images?

Mirrors reverse images because of the way light reflects off of them. When light hits the mirror, it bounces off at the same angle it hit the mirror. This means that if you hold up a letter "A" in front of a mirror, the light reflecting off the "A" will bounce off at a certain angle and create a reversed image of the "A" in the mirror.

3. What is the difference between a flat mirror and a concave mirror?

A flat mirror has a completely flat surface, while a concave mirror has a curved surface. This curvature allows the concave mirror to reflect light in a way that can magnify or distort images, depending on the distance between the object and the mirror.

4. Can mirrors be used for more than just reflection?

Yes, mirrors can be used for more than just reflection. They are also used in various scientific instruments, such as telescopes and microscopes, to help manipulate and focus light in order to observe objects that are too far away or too small to see with the naked eye.

5. How are mirrors made?

Mirrors are typically made by coating a sheet of glass with a thin layer of reflective material, such as aluminum or silver. This reflective coating is then protected by a layer of paint or plastic on the back of the mirror. Mirrors can also be made using a process called silvering, where a thin layer of silver is deposited onto the glass using a chemical reaction.

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