Photonics Equations Flashcards
1
Q
Group Velocity
A
2
Q
Group refractive index
A
3
Q
Optical path length
A
4
Q
Snells law for reflection and refraction
A
5
Q
How are refractive index and relative permittivity related?
A
n = √εr
6
Q
Photon Momentum two forms
A
7
Q
Phase velocity
A
8
Q
Average Irradiance
A
9
Q
Poynting vector / Irradiance
A
10
Q
Topic 3: Internal Quantum Efficiency
A
11
Q
Topic 3: External quantum efficiency
A
12
Q
Equation for PCE( power conversion efficiency)?
A
PCE = output power / input power
13
Q
Shot and Thermal Noise Variance
A
Shot noise → 𝑖sh2 = 2𝑒𝐼𝐵
𝑖th2 = 4𝑘𝑇𝐵/R
14
Q
What is this?
It is equivalent to
A
Shot noise variance
2𝑒𝐼–𝐵
and since it is variance it is also equal to the σ2, the standard deviation squared.
