All Questions
Tagged with optics electromagnetism
596
questions
29
votes
4
answers
8k
views
Is one way glass possible?
I am not talking about mirrors, just a plain window made of glass like material. Would it be possible to allow light pass only in one direction but not the other?
- 293
4
votes
3
answers
2k
views
Numerical software to manipulate a light beam in its plane wave representation?
Any light field can be expressed as a sum of plane waves. Such an ensemble of plane waves is called the plane wave spectrum of the light field. The plane wave spectrum is the Fourier transform of the ...
- 133
20
votes
2
answers
4k
views
Theoretical penetration limit for evanescent waves
Consider a problem in classical electrodynamics, when a monochromatic beam experiences total internal refraction when traveling from a medium with $n>1$ to a medium with refractive index $1$ - see ...
- 6,480
8
votes
1
answer
2k
views
Question about Rayleigh scattering
To quote from Wikipedia on elastic scattering, "In this scattering process, the energy (and therefore the wavelength) of the incident photon is conserved and only its direction is changed."
How does ...
- 347
1
vote
1
answer
111
views
Creating the opposite of an optical lattice
Is it possible to create periodic potentials that instead of creating a well for an atom to be trapped in, repulsed by that specific location?
If yes, can we use this as a means to make artificial ...
- 3,871
13
votes
7
answers
3k
views
Why aren't there compression waves in electromagnetic fields?
I just started learning about optics, and in the book I'm reading they explain how the electrical field caused by a single charged particle could be described by a series of field lines radiating out ...
- 882
-2
votes
1
answer
1k
views
Light travels a straight line write down the principle in which this is manitested [closed]
Light traveles a straight line write down the principle in which this is manifested.
- 21
0
votes
2
answers
974
views
Do and can phone signals come inside AC car which is glass-packed
Can phone signals penetrate glass, so can I expect phone signals to come if I am sitting inside a closed AC car.
Thanks,
- 655
11
votes
1
answer
642
views
Formulation of Transformation optics using a Material Manifold
Dear Community,
recently, Transformation optics celebrates some sort of scientific revival due to its (possible) applications for cloaking, see e.g. Broadband Invisibility by Non-Euclidean Cloaking by ...
- 4,311
7
votes
2
answers
2k
views
What does an atom radiate: a wave packet or a single photon?
What does an atom radiate: a wave packet or a single photon?
- 2,635
15
votes
4
answers
1k
views
Nonlinear optics as gauge theory
the widely used approach to nonlinear optics is a Taylor expansion of the dielectric displacement field $\mathbf{D} = \epsilon_0\cdot\mathbf{E} + \mathbf{P}$ in a Fourier representation of the ...
- 4,311