plask.phys¶Basic physical constants and utility functions.
qe |
Elementary charge [C] |
me |
Electron mass [kg] |
c |
Speed of light [m/s] |
mu0 |
Vacuum permeability [V·s/(A·m)] |
eps0 |
Vacuum permittivity [pF/µm] |
eta0 |
Free space impedance [Ω] |
Z0 |
Free space impedance [Ω] |
h.J |
Pnav-sidenavlanck constant [J·s] |
h.eV |
Planck constant [eV·s] |
SB |
Stefan-Boltzmann constant [W/(m2·K4)] |
kB.J |
Boltzmann constant [J/K] |
kB.eV |
Boltzmann constant [eV/K] |
eV2nm(eV) |
Compute wavelength for specified photon energy. |
nm2eV(nm) |
Compute photon energy for specified wavelength. |
wl(mat, lam[, T]) |
Compute real length of optical wavelength in specified material. |
plask.phys.eV2nm(eV)¶Compute wavelength for specified photon energy.
| Parameters: | eV (float) – Photon energy [eV]. |
|---|---|
| Returns: | Wavelength [nm]. |
| Return type: | float |
plask.phys.nm2eV(nm)¶Compute photon energy for specified wavelength.
| Parameters: | nm (float) – Wavelength [eV]. |
|---|---|
| Returns: | Photon energy [nm]. |
| Return type: | float |
plask.phys.wl(mat, lam, T=300.0)¶Compute real length of optical wavelength in specified material.
This is utility function that computes the physical length of a single wavelength in specified material. Its main purpose is easier design of DBR stacks.
If you are using it with custom materials, make sure that it does provide
nr() method.
| Parameters: |
|
|---|---|
| Returns: | Real length of the one wavelength in the material [µm]. |
| Return type: | float |