All Questions
3
questions
1
vote
0
answers
57
views
What's the difference between a rhombus lattice and a hexagonal lattice in photonics?
I am learning photonic crystal slabs. I try to figure out what the difference between a rhombus lattice and a hexagonal lattice in photonics is?
All I know is that they have diffefent Brillouin zones,...
- 11
0
votes
1
answer
765
views
No solution to Bragg's law?
Bragg's Law provides a description for the diffraction peaks we observe when x-rays are incident on a crystal structure. We observe these diffraction peaks because the wavelength of the incident x-...
- 1,581
2
votes
1
answer
99
views
Is the huge calcite birefringence accounted for by first principles?
The birefringence in calcite is huge (possibly the largest?). The question is, why is it so special? why is such kind of materials so rare?
In other words, is it explained by first principles?
By ...
- 231