All Questions
5
questions
2
votes
1
answer
38
views
Why are $\rm ZnSe$ beam-combiners typically "optimized" for a 45º angle of incidence?
Everywhere I look it seems that $\rm ZnSe$ beam combiners (as the ones sometimes used in $\rm CO_2$ [10600nm IR] laser cutters) are "optimized" or designed to work at a 45º angle of ...
- 21
1
vote
1
answer
130
views
Total internal reflection doesn't occur when it is supposed to
I figured out that when I aim a laser beam on my window at an arbitrary angle, the total internal reflection doesn't occur whatsoever. What's more, the refracted beam seems to be pretty intense. It ...
- 513
2
votes
1
answer
204
views
Reflectivity coefficients at dielectric interface
In the book Principles of Lasers by Orazio Svelto, at chapter 4.3 "Wave Reflection and Transmission at a Dielectric Interface", the author tells that
If the wave is initially in the medium ...
- 1,904
0
votes
1
answer
76
views
Curved Light stream?
I was wondering, a while ago, i asked if there is a way to bend light someway, which I got the answer is index of refraction.
Which is when light passes through a material it refracts to a certain ...
- 273
1
vote
1
answer
186
views
Effect of the refractive index of a transparent layer coating a particle?
I am modelling a cell as a particle coated by a layer of a material whose refraction index might change. This layer is to resemble the membrane.
The purpose of the model is to simulate what happens ...
- 25