Questions tagged [photonics]
Photonics is the science of creating, moving, and detecting photons
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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 ...
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What is the formal definition of Coupling efficiency
Does anyone knows the formal definition of Coupling efficiency?
I have been reading the term in photonics devices and optics.
I have been searching for it, but I could not find any.
Thanks for the ...
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Induced Electric field in metasurface
In CST Microwave Studio, for metasurface simulation, the defined electric field for the incident linearly polarized plane wave is 1 V/m. However, the induced electric field for the unit cell of the ...
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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/...
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Does the creation operators for photons with different polarization commute?
Let $\hat{a}^{\dagger}_{\sigma}$ be the creation operator of a photon with the polarization $\sigma $ towards some reference. What are the commutator relations for the creation operators of a photon ...
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Is luminescence from impact of fast neutral atoms/molecules on a suitable substance known?
Cathodoluminescence is emission of photons by electrons impacting on a luminescent material.
The Rutherford scattering experiments detected impacting helium nuclei on a phosphor screen.
Many other ...
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How can the inverse of stimulated emission be distinguished from "normal" absorption?
A simple system with two energy states can absorb an incoming photon (of adequate energy) to get excited, and it can relax by either spontaneously emit a photon afterwards or get stimulated by another ...
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Photonic classical and quantum computing
How different is the hardware used for classical and quantum photonic computers? Are there any proposals on hybrid platforms? I'm curious why I never heard of both within the same context, except for ...
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Interferometer designed to create diffraction in free space
I designed the following interferometer:
If the light beam -theoretically- is very narrow , will light be diffracted away from point B from QED's perspective?
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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 ...
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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 ...
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Lens focusing a collimated beam into a disk of some material. Focus shift due to movement of material?
I encountered a geometric optics problem that gave the example of a lens focusing a collimated beam into a disk of some material with refractive index $n$. It then claimed that, if the disk moves ...
CommunityBot
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Inconsistency between Jones vectors and Stokes parameters
Plane wave equation :
\begin{equation}
\vec{E}(z,t)=\left| \begin{array}{c}
E_{0}^{x}e^{i\delta_{x}} \\
E_{0}^{y}e^{i\delta_{y}} \\
0 \\
\end{array}\right|e^{i(\omega t -kz)}\quad,\quad E_0^{x,y}
\in\...
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Why does the focusing efficiency drop with numerical aperture for a microscope objective?
I am doing the following experiment in my lab. I have a collimated laser beam, which is focused by a lens. Then the light is collected by a microscope objective. Also, I use two lenses (L1 and L2) to ...
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Is IR Emissivity changed by being submerged in fluids other than air?
I am aware that IR emissivity happens in a vacuum, but treating vacuum as the best case rather than the worst case (where there is nothing adjacent to an emitting atom/surface).
Where should I start ...
