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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,...
Terry Leung's user avatar
6 votes
2 answers
329 views

Band theory of Photonic crystals

I have a basic question about the band structure of photonic crystals. If I have a periodic potential, then Bloch-theory tells me that the bands yield the energy spectrum of the Hamilonian which is ...
Sascha's user avatar
  • 117
1 vote
0 answers
18 views

Is characteristic temperature $T_0$ of a semiconductor laser geometry independent?

Can I compare $T_0$ of one laser to another one, with different length and width? For example, let's say there are two lasers: Laser A Width: 20 $\mu m$ Length: 500 $\mu m$ $T_0$: X Laser B Width: ...
user46147's user avatar
  • 3,034
4 votes
2 answers
625 views

Scattering vs Stimulated Emission

I am currently reading Practical Flow Cytometry, fourth edition, by Howard M. Shapiro. The author says the following when discussing scattering: Scattering, which explains both reflection and ...
The Pointer's user avatar
0 votes
1 answer
29 views

Solid-state lasers: The peak power of each pulse is at least three orders of magnitude above the average output power?

My textbook, Solid-State Laser Engineering, 6th edition, by Walter Koechner, says the following: Average Output Power. The majority of solid-state lasers available commercially have output powers ...
The Pointer's user avatar
4 votes
2 answers
456 views

Non-monochromatic (multi-wavelength?) lasers

I was recently doing some reading on lasers, and I came across the fact that truly monochromatic light is impossible, which then obviously implies that truly monochromatic lasers are impossible. But ...
a24914ad's user avatar
0 votes
0 answers
46 views

What is the difference between non-local optical response and local optical response?

Does anyone knows what is the difference between non-local optical response and local optical response in metal-dielectric-metal?
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