All Questions
9
questions
0
votes
2
answers
47
views
Is reflected color not from the wavelength corresponding to that color?
I was reading through Josef Albers' interaction of color (a classical art color theory book), where he makes this point:
If I see a substance, or pigment of a particular color, doesn't that mean I'm ...
- 1,096
4
votes
1
answer
91
views
Link between resonant states (quasinormal modes) in 1D wave equation, and roots in reflection coefficient?
For a simple Fabry-Perot cavity formed by a dielectric slab, the quasi-normal mode frequencies (i.e. $\omega=i \frac{c}{2nL}\ln{r^2}$, where $nL$ is the optical path difference between ends of the ...
- 972
52
votes
4
answers
7k
views
What wavelengths of light does a banana reflect?
I do know that there are at least two types of yellow light: a light of a single wavelength of ~580 nm and a combination of green light and red light. (Technically, there could be more yellow light.) ...
- 723
1
vote
0
answers
416
views
Does reflection depend on wavelength?
I'm aware of processes like Rayleigh scattering, Compton scattering and pair production. But as these processes treat light as being particles(?) I'm not sure whether they are helpful to understand ...
- 1,507
1
vote
1
answer
134
views
Must the distance between the reflectors of a coherent laser be a multitude of its intended wavelength?
Must the distance (aka cavity length $L$) between the two reflective mirrors of a spatial and temporal coherent laser be a multitude of the lasers intended wavelength?
If no, why not?
If yes, how does ...
- 282
3
votes
1
answer
270
views
Reflection by a mirror of wavelength type dimensions
Suppose there is a perfectly reflecting mirror, which is somehow made to the size of wavelength is visible light. Will there be any reflection now, or will it act in some other way?
I thought there ...
- 580
0
votes
3
answers
2k
views
Does reflection preserve wavelength?
If a photon at a certain wavelength gets reflected on a surface, does the reflected photon have exactly the same wavelength? If not, what is the distribution of its wavelength?
I know about up- and ...
- 127
0
votes
1
answer
84
views
Blue hues in Aluminum mirror
[][] When depositing Aluminium sometimes I end up with a bluish hue to my film especially when changing angle of view. I use a very high rate of deposition and low temperature. What would cause this?
- 1
1
vote
0
answers
52
views
Fresnel equations of reflection applied to microparticles
I wanted to know if the Fresnel equations of reflection, as described here, can be used to calculate the reflectance on the interface of particles which have a diameter near the size of the wavelength ...
- 11