All Questions
14
questions
3
votes
2
answers
124
views
Are EM waves telling us the probability of finding a photon?
I feel like I've been frequently presented with an interpretation of EM waves that goes something like this:
Light is an oscillating electromagnetic field. Because changes in the electric field ...
- 203
1
vote
2
answers
182
views
Amplitude and frequency of a wave
What is the amplitude and frequency of wave with the following wave equation:
$$y = A \sin^2(2(kx - \omega t))$$
I plotted the wave at $t = 0$. The resulting wave has amplitude $A$. But my textbook ...
- 51
0
votes
1
answer
123
views
In uncertainty principle of waves
In uncertainty relations between freq. and time, if you had a part of a wave but not the entire cycle,(thus it is said that the frequency/wavelength is uncertain) couldn’t you based on the short curve ...
- 91
0
votes
1
answer
282
views
Wave function and speed of light
When a photon is generated, it travels at the speed of c in the form of propagating electromagnetic wave until the photon interacts with something else to have its energy absorbed or converted. Is ...
- 9
1
vote
2
answers
407
views
Standing Wave in a transmission line and Resonance
let's consider a transmission line of length L closed on a mismatched load. So, there will be a travelling wave and a reverse travelling wave:
V(z) = V+(z) + V-(z)
My question is: will there always ...
- 1,319
3
votes
1
answer
432
views
Impossible to decompose EM plane wave in spherical waves? (Normalization mismatch)
I am having a problem with an expansion that should be simple. Let's say I solve Maxwell equations in vacuum, but in spherical coordinates. The solutions of the TM family can be found easily to be
$$
...
- 131
2
votes
3
answers
644
views
Different expressions of cylindrical EM waves if derived from one dimensional or three dimensional wave equation?
Consider electromagnetic cylindrical waves. Cylindrical waves can be derived from the plane waves using energy conservation consideration: since the power must be a constant the amplitude of a ...
- 2,617
0
votes
2
answers
930
views
How to visualize the propagation of a wave?
Waves can be visualized as a waveform, with crests, troughs, wavelength and amplitude. Water waves (wind waves) fits excellent in this model. However, there is many kind of waves in nature. Is it ...
user134652
8
votes
2
answers
13k
views
What does a light wave look like? (3D model)
What does a light wave look like?
The only models I can seem to find online are 2D waves, they just look like sin() graphs.
I have seen the models of the two components of "light waves" (electric ...
- 297
2
votes
1
answer
126
views
$\sqrt{\frac{\omega ^2}{c^2}-k_z^2}$ in cylindrical harmonics
The radial component of the solution of the wave equation in cylindrical coordinates is $$J_\nu \bigg(\rho\sqrt{\frac{\omega ^2}{c^2}-k_z^2}\,\,\bigg).$$
But I always thought that $\frac \omega c$ ...
- 379
0
votes
0
answers
53
views
Photograph of Light as Wave and Particle [duplicate]
what is this? actually its the first photo of light as wave and a particle.
The bottom "slice" of the image shows the particles, while the top image shows light as a wave.
i have questions
1.how ...
- 290
6
votes
2
answers
7k
views
Linear vs. quadratic dispersion relation
In wave mechanics the dispersion relation between frequency $\omega$ and wave number $k$ is linear: $$\omega_n=c k_n$$
But in quantum mechanics, based on Schrödinger's equation, one can show that we ...
- 4,685
2
votes
2
answers
2k
views
A difference between Plane Wave and Collimated?
Collimation is clearly in reference to ray($\vec{k}_{xy}$ vector) orientation unlike waterfront continuity( $\phi_{xy}$ phase shift) described by plane-wave. Not to say that one is not directly ...
- 531
1
vote
1
answer
1k
views
Relationship between classical electromagnetic wave frequency and quantum wave function + de broglie frequency
As it is.
As I study through classical mechanics and quantum mechanics, I began to wonder whether there is a relationship between classical electromagnetic wave frequency and quantum wave function ...
- 685