TAS - Transmission spectra with Atom-Surface interactions documentation¶
A Python package
tas calculates transmission spectra through
optically thin slabs of atomic vapours contained in
spectroscopic cells including important effects of thin cells:
- two closely spaced walls of the spectroscopic cell act as low-finesse cavity for driving light and emitted light;
- atoms colliding with the cell walls depolarise, and their subsequent transient dynamics also changes transmission spectra; finally
- atom-surface van der Waals interaction induces level shifts. For thickness smaller than λ/(2π), where λ is the wavelength of the strongest dipole allowed transition from each of the two energy levels whose transition spectrum we explore, the shift of the transition energy is \(\propto C_3/R^3\), where \(C_3\) is van der Waals constant for given atomic transition.
Generated spectra can be used for fitting results of atom-vapour laser spectroscopy to obtain strength of \(C_3\) for atom-surface interactions. Detailed documentation follows bellow. For detail on the physics and measurements please cite original paper.
|Authors:||Tom Peyrot and Nikola Šibalić|
|Version:||0.0.1 of 2019/04/17|