All Questions
38
questions
2
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38
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Direction of propagation of extraordinary wave inside a birefringent medium
I am reading Optics by Ajoy Ghatak, in which the author explains the phenomenon of double refraction in a calcite crystal using Huygens' principle. My query is in the analysis of the case of normal ...
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1
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0
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51
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What is the connection between Ray (Geometric) optics and Electromagnetic theory optics in fiber optics?
I am currently reading about fiber optics and wave propagation in fiber optics and encountered the following part of Gerd Keiser's Book :
according to the diagram shown, its a general case when the ...
0
votes
1
answer
46
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Can interference occur between two consecutively arranged light filters (via reflection) in the space between them?
(This is a follow up question from my previous one: Do the values of two reflective light filters arranged one behind the other add up in this way?)
The light of the imaginary intensity 1 is viewed ...
- 211
0
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1
answer
397
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Phase Shifting Beam Splitter
I am trying to make sense of all these answers in: Phase added on reflection at a beam splitter? and web search results. So my understanding is that the actual phase shift depends on the beam splitter ...
- 613
3
votes
2
answers
623
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Hong–Ou–Mandel effect
The Hong–Ou–Mandel effect is a two-photon interference effect in
quantum optics that was demonstrated in 1987 by three physicists from
the University of Rochester: Chung Ki Hong, Zheyu Ou, and Leonard
...
- 613
1
vote
2
answers
144
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Why rays of light from different points don't form an image?
I'm asking a clarification about this questions:
Why does an image only form where light rays coming from a single point get reflected or refracted and converge to a common point?
I want to know if ...
- 338
0
votes
1
answer
105
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We know that a window can actually reflect light. But if the window has some dirt sticking to it, the image we see sometimes get magnified. Why?
Well, I was traveling in a bus yesterday and saw this occur. The board that separates the passengers from the driver's had something written on it and I saw that the window that was a few meters away ...
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2
votes
1
answer
214
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Rotation of the image formed by the extraordinary ray upon rotating the calcite crystal
Let a black spot is drawn on a piece of white paper. If we place a transparent calcite crystal on top of the paper, we observe two non-coincident images of the black spot. This is due to the ...
- 11.8k
4
votes
3
answers
244
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Can a fibre preserve the shape of the light being transported through it?
Can some fibres retain the shape of the light being transported through them?
If I emit radiation towards a sample (in the shape of an "S") and this is reflected back into a fibre, will the ...
- 753
3
votes
1
answer
204
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Can there be a single ray of light?
My physics teacher told me that a beam of light is a collection of rays of light and there cannot be a single absolute ray of light. Is this true?
3
votes
1
answer
338
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Why does light bend when it enters a medium?
I am asking this question after referring to @benjimin answers at Why does light bend?
I found the same answer at wiki. But i found a video on youtube by doctor don (https://www.youtube.com/watch?v=...
- 67
2
votes
4
answers
354
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Details of how we see and percieve objects and images
I am a high school student and I have a question related to the concept of object and image I know where incident rays intersects this point is called object but here if this is the case
here what ...
- 470
6
votes
8
answers
2k
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Why does an image only form where light rays coming from a single point get reflected or refracted and converge to a common point?
I am a high school student and I have read many books and information on the internet about concept of object and image in optics. They all say that where reflected/refracted rays intersect they form ...
- 470
1
vote
2
answers
61
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Is it possible to make invisibility cloak in real? [closed]
I am a materials science undergraduate student. I have a question out of curiosity if it is possible to make a material that can completely make things invisible? What are the problems we will ...
- 163
1
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0
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39
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Light traveling in glass transmitted through an air gap
Consider a plane wave traveling in glass incident on a small air-gap. The situation is illustrated below (reflected fields omitted) for arbitrary materials.
My professor derived the expression for ...
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