All Questions
Tagged with photonics quantum-mechanics
15
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Michelson interferometer but with 1 arm (Part 2)
I designed a setup similar to Michelson Interferometer but with one mirror only. So, there is an angle between the 2 rays to the detector:
In order to understand the result on screen, I used (Zemax/...
- 81
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1
answer
62
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Destructive interference pattern perpendicular to photon's propagation direction
I'm studying the interference pattern for light. For example, the following is the interference pattern for double slit experiment:
I'm curious to know if there is an existing interference pattern ...
- 81
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1
answer
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What happens if obstacles (walls) been put where destructive interference occurs in double slit experiment?
If photon doesn't have probability to be in dark (destructive interference) area, what will be the effect of adding obstacles (walls) in the dark (destructive interference) area for the double slit ...
- 81
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Collection efficiency of mirror
I want to compare plane and parabolic mirror for collection of photon from a point source. Intuitively, parabolic mirror focuses all rays from point source and gives parallel rays therefore has a ...
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2
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78
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Tightly-focusing a single photon
I'm curious about the feasibility, both theoretically and experimentally, of tightly focusing (or spatially trapping) a single photon to guarantee its precise targeting. If it’s possible, isn’t it ...
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Simulation photosystem light absorption in Quantum computing
Basically, I want to simulate the above photosystem process of light absorption. Above is a diagram of laser beams shot into antenna pigment molecules and traveling to the reaction center. Two ...
- 119
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1
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Is it possible for an atom to contain multiple electrons in the same excited state?
This question mostly stems from my quite rudimentary knowledge of laser physics. As far as I understand it, all the 3,4,..-level-systems regard the electrons being in more or less excited states. ...
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109
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What are the factors that decide which type of SPDC (Type I or II) occurs in a Non-Linear Crystal?
I have been reading through some literature on the theory of Spontaneous Parametric Down conversion (SPDC), their types, the phase-matching condition, etc. To my understanding, the downconverted ...
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How is laser cooling effective if photon emission is random in direction?
In laser cooling, it's my understanding that the lasers are slightly detuned from the absorption frequency of the atoms so that only atoms moving a specific direction absorb light from a given laser. ...
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2
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Diffracted Electrons vs Particulate Electrons (Collapsed): Is there an experimental difference in terms of Double Slits and/or Which Way information? [closed]
In this community, it has been accepted that electrons can self-interfere.
Can an electron interact with itself to create interference?
This video is a good lecture on diffraction gratings and plane ...
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3
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293
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A single spatial mode whose associated harmonic oscillator is in its $n$th excited state unambiguously contains $n$ photons?
I am reading the introduction to the textbook The Quantum Theory of Light, third edition, by Louden. When discussing the photon, the author says the following:
The idea of the photon is most easily ...
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212
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Stark level manifold
In this figure from https://www.rp-photonics.com/effective_transition_cross_sections.html:
When a high energy photon (920nm) is absorbed followed by phonon emission to lower energy level in the ...
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5
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91
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Books recommendation to understand Quantum Confined Stark Effect
I am starting a PhD on a photonic component involved with QCSE. The problem is that I have a Master degree in electronical engineering, not in fundamental physics, and I need to understand the QCSE in ...
1
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2
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92
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Why doesn’t simultaneous wave particle observation collapse the wave function?
My question is pretty much as the subject suggests. Recently Fabrizio Carbonne and a team from EPFL have managed to image the wave particle duality of light. I thought however that this was a ...
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Good book on quantum photonics and applications
I am just looking for an easy to read introduction to quantum photonics and possible applications. Terms like "Fock state" and "Photon (anti)bunching" should be understood after reading. Perhaps also ...