====== SSPD Models ======

^ Reviews ^^
^ \cite{Engel.Renema.ea:2015} | Review on Detection Mechanisms |
^ Theses^^
^ \cite{Allmaras:2020} | PhD Student at Caltech worked on the improvement of the Vodolazov model.|

The detection event of single photons by SSPDs can be split into four phases, of which the first and the last are very well understood.

  - [[#photon_electron_interaction | Photon - electron interaction]]
  - [[#down_conversion_phase | Down-conversion]]
  - [[#resistive_area_forming_phase | Forming of the resistive area]]
  - [[#reset_phase | Reset of the detector]]

===== Photon − electron interaction ===== 
As a first step, the photon is absorbed inside the superconducting film. This process can be described by classical electromagnetics. This allows the simulation using common simulation techniques like FDTD or FEM. 
===== Down−conversion phase =====

===== Resistive Area forming phase =====

==== Normal spot model ====

===== Reset phase =====
^ \cite{Kerman.Dauler.ea:2006} | Influence of the Kinetic inductance on reset. |
^ \cite{Yang.Kerman.ea:2007} | Electro-thermal model to describe everything that happens after formation of the resistive barrier. |