All Questions
Tagged with reflection photons
101
questions
0
votes
0
answers
32
views
What is the speed of light during reflection? [duplicate]
What is the speed of light in a vacuum when the light reflects off of a mirror?
- 331
2
votes
2
answers
83
views
Is reflected photon the same? [duplicate]
When a single photon is reflected is the same one, or is it a new photon (emitted) while the 'original' photon has been absorbed?
I'm not sure how to imagine a refleced photon - it's not a ball ...
- 209
1
vote
0
answers
29
views
What happens to a single photon in case photoexcitation doesn't occur upon "hitting" an electron of a single atom
I'm having trouble finding sufficient answers that don't boil down to discussing materials.
Some people say that if a photon does not excite an electron it doesn't interact with it at all and just ...
1
vote
0
answers
19
views
Mirror momentum in a Mach-Zehnder interferometer
As I understand it, the mirrors in a MZI should gain momentum from the reflected photons. How much momentum should the mirrors get for a single photon? In a simple photon-mirror incident at $\pi/4$ ...
- 11
0
votes
0
answers
67
views
How does mirror reflection affect laser beam coherence?
I am an engineer that uses 10.6 micon laser beams to damage material. I am not a physicist so be gentle with your answers please.
Two adjacent photons with their wave phases locked strike a 45 degree ...
1
vote
2
answers
408
views
If photons are massless, how are they reflected and blocked by something that has mass? Shouldn't they pass right through any object?
If photons are massless, how do they get reflected, blocked when something comes in its way? Shouldn't the particle just pass right through any object?
- 351
0
votes
0
answers
48
views
What causes an object to be more reflective than refractive?
This is a question that a high school student asked me and I couldn't give him a satisfactory answer. He started by saying that
An object appears red because the energy corresponding to a "red&...
- 8,230
1
vote
1
answer
362
views
How does light interact with atoms? [closed]
I've read this answer regarding the difference between mere reflection and absorption followed by emission and I am struggling to understand some concepts. To begin with, we have some matter-light ...
- 11
1
vote
0
answers
23
views
Reflection of waves on the basis of particle theory
As it is an established fact now that light shows dual nature, can we explain the phenomena of reflection of light considering it to be particle.
If it can be done, then I have a question:
How can we ...
- 45
1
vote
0
answers
94
views
Phase shifts introduced by a beam splitter
I am studying this paper about the automatic generation of quantum experiments. The algorithm they are using is based on a series of symbolic transformations that are used to simulate the effects of ...
- 735
0
votes
4
answers
133
views
Do EM waves cancel out permanently in this example?
If we emit two photon rays one from each source 1 and 2 and after they reflect on mirrors to reach the same trajectory they should cancel out in the case their phases are opposite 100% but will any EM ...
- 467
2
votes
1
answer
85
views
I seek a highly specular reflective (>99%) surface for UVC (~253.7 nm) photons. Is such a surface possible?
Does the answer change with the angle of incidence? If specular reflectance changes with angle of incidence, what is the relationship between them? If such surfaces are possible, where can I find a ...
- 21
2
votes
0
answers
44
views
What is so "special" about a mirror ? To cause it to redirect/reflect electromagnetic radiation? [closed]
What is so "special" about a mirror ? To cause it to redirect/reflect electromagnetic radiation ?
- 61
1
vote
0
answers
62
views
Will an entangled photon bouncing off a/penetrating through a mirror "de-tangle" it?
Lets say I create a pair of entangled photons. I then shoot one of the photons through a semi-silvered(semi-reflecting) mirror. one(or both) of the photons are reflected, and (or) one (or both) of the ...
- 75
1
vote
1
answer
145
views
How is energy conserved in this system?
In space, a photon with momentum $P_1$ is reflected off a mirror, accelerating it slightly. Now there is a reflected photon with momentum $P_2$ in the other direction. So, the mirror must have ...
- 107