All Questions
Tagged with terminology optics
68
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Absorption and emission spectrum terminology
Hi everyone recently i was looking for laser crystals and since I am an autodidact i was confused by the terminology and units of the optics domain. And specialy by the absorption and emission ...
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Is there a name for the number of '9's in numbers such as 0.999 (where it would be 3)?
I am doing an optics simulation involving transmission and reflection coefficients very close to 1, such as 0.999. While I was an undergraduate student, a professor mentioned that, in certain fields, ...
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Is Principle of Least Action a first principle? [closed]
It is on the basis of Principle of Least Action, that Lagrangian mechanics is built upon, and is responsible for light travelling in a straight line.
Is its the classical equivalent of Schrodinger's ...
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What is a stochastic electromagnetic wave?
In statistical optics we always talking about stochastic electromagnetic wave but I am not able to understand how this wave is different from electromagnetic wave
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Is there a proper name for "optical image transitivity"?
I've scoured Wikipedia for any evidence that the following statement:
[paraphrasing] ... all images formed by one device can serve as the object for a second device ...
Has its own proper name. Has ...
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What do we actually mean when we say "light"?
light is an electromagnetic wave , but can we say all EM wave are light?
eg. infrared radiation , uv radiation ... can we say these as light?
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Is lens a type of mirror?
I saw the definition of 'lens' in an online portal as
Lens is a type of mirror which refracts the light instead of reflection
Is that true to say 'type of mirror'? Mirrors have an opaque surface in ...
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1
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Nomenclature for stationary states in the context of wave equations
Consider the Schrodinger equation $i\partial_t u=-\Delta u.$ Special solutions of the form $$u(t,x)=u_k(x)e^{ikt}$$ have many names which I've seen used, such as stationary states, solitons, standing ...
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What does quadrature mean in the context of sine waves and resonance?
I heard a professor talk about quadrature in a sine wave representing resonance in time. What is the quadrature of the wave, and what does it mean for a quadrature to shift?
To be more specific, a ...
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4
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666
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Can two waves be considered in phase if the phase angle is a multiple of 2$\pi$?
Question is essentially what the title states. Wavefront is defined as the locus of points that are in phase. So I wanted to know if the locus would be the points of only a single circle or multiple ...
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What is the technology that uses a rectangular mask to do high focus imaging?
There is a newly developed technology that involves using a specialized mask to resolve images without the use of a lens. The technology potentially allows the imaging system to avoid limitations ...
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What is the difference between photobleaching and photoinduced transparency?
In experiments on pump-probe spectroscopy, when the pump and probe pulses are close in frequency, there is a common situation when probe pulse absorption decreases (and transmission increases) after ...
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What's the difference between "optical amplification" and "magnifying"?
Optical amplification used widely in astronomical observatories and "magnifying" used in microscopes.
What's the difference between "optical amplification" and "magnifying&...
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Technical name (radiometric/photometric/ray-optic) of the physical field that is measured with a camera
A camera (that is FPA and objective) is a device that measures [intensity][1] or radiant intensity vs. two angles (horizontal & vertical). So it generates a representation of the physical quantity
...
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Microscopic origin of non-linear optical effect
I know that a non linear optical medium is a medium in which the optical response for example polarisation vector varies as
\begin{equation}
\vec{P}=\epsilon_0\chi^{(1)}\vec{E}+\epsilon_0\chi^{(2)}\...
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