All Questions
Tagged with optics interference
466
questions
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How is light interference explained with photons?
In the classical model of light as an EM wave, interference is a trivial consequence of the linearity of the wave equation. Now, if we model light as collections of photons, how is light interference ...
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Confused about the principle Of Michelson Interferometer
Consider the figure that I found from an answer here:
Michelson interferometer circular fringes
Now the path difference in the image in clearly
$$\Delta d= 2d cos\theta$$
and I know a phase ...
- 23
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13
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Jamin interferometer's interference pattern
I'm working with a Jamin interferometer, and I'm interested in calculating the intensity pattern I would observe in a far away plane. The scheme is as follows:
Spherical light enters through the ...
- 1,619
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votes
4
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Double slit experiment with polychromatic light
When double slit experiment is carried with white light , the resulting pattern on the screen is predicted by assuming white light as combination of light of different colors. Then it is assumed that ...
- 426
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Double slit with off centre source, where does phase difference occur?
I am currently working through the following problem for my optics class. The setup as shown below is composed of a double slit sandwiched between two convergent lenses L1 and L2. A point source is ...
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1
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Impact of obstacles on Single/ Double split interference pattern
What is the impact of obstacles on the interference pattern if the obstacles are arranged to be located in the destructive interference locations as follow:
According to my understanding to classical ...
- 81
2
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1
answer
111
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Question on Babinet's principle example
Say we have the following mask (I drew it myself on paint):
I asked myself if it is possible to know the form of the image generated on a screen after the mask or know the electric field generated ...
- 75
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Why in the experiment of double slits, in case of radiation of wavelength of red light, we can observe an envelop of the minimum?
I have made an experiment in which i have to measure the intensity of the light generated by an $\text{He-Ne}$ laser, in the case of two slits, I pretend to observe an interference lattice.
I have to ...
6
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4
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969
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Treatment of infinite reflections in thin-film interference
Why do we only consider interference of the first two reflected waves when studying thin-film interference (see attached diagram)? Is there a rigorous treatment that considers the infinite number of ...
- 411
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3
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Diffraction grating from reflection
We had an experiment in our physics lab where we used two grating materials one with 2500 lpi(say A) and the other with 15000lpi(say B).
Now when we shine white light on both of them we didn't get any ...
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2
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4
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85
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Diffraction proof
I am talking about the way we generally explain the occurence of bright and dark fringes during diffraction. When we want to show a dark fringe we consider a pair of secondary light sources who have a ...
0
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114
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Single Photon Interference and the Hong-Ou-Mandel (HOM) Effect in an Interferometer
Reading on the Hong-Ou-Mandel (HOM) effect, I came to wonder how exactly we can be certain that interference that occurs in apparatuses such as a Michelson interferometer and Mach-Zehnder ...
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2
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130
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Why diffraction works at sharp edges?
While introducing Diffraction, physics textbooks say that this effect (Diffraction) is observed distinctively when the light is passed through a very small opening, the length or diameter of which is ...
- 2,517
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Is the Huygens' principle consistent for intersecting wavefronts?
When refraction takes place at the interface of two media, wavefronts can be extended to intersect as below:
At point of intersection, light requires no time to travel between the wavefronts. However,...
0
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1
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How to align a Mach-Zehnder at 810 nm?
I have a task to arrange MZI using very weak source with photons coming one at a time. On top the wavelength is 810 nm. How to 'see' the interference pattern to 100% in one channel and 0% in other. I ...
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