====== Properties of the SNSPD ======
===== Wavelength Sensitivity =====
^ max $\lambda_0$ ^ Group (Date) [Citation] ^ Material ^ Comment^
| 9.9um | Shaw \cite{Verma.Korzh.ea:2021}| WSi |

===== Timing Jitter =====
^ Jitter [ps] ^ Group (Date) [Citation] ^ Material ^ Comment^
| | | |

===== Photon Count Rate (PCR) =====
The photon count rate is a standard measurement for SNSPDs where the bias current is increased and the count rate with constant illumination is recorded. This reveals the "intrinsic" detection efficiency ($DE$) of the structure.

The counts show an imperical sigmoidal shape and is fitted with different functions by different groups.

  * Sigmoidal Power Law \cite{Baghdadi.Schmidt.ea:2020} where $I_{B0}$ is the inflection point and $p>1$ is changing the steepness of the transition.
    $$ DE(I_B) = DE_\mathrm{sat} \left( 1 - \frac{1}{1 + \frac{I_B}{I_{B0}}^p} \right) $$
  * >>Standard<< logistic function with $\sigma$ as width of the transition.
    $$ DE(I_B) = DE_\mathrm{sat} \left( 1 - \frac{1}{1 + \exp{\frac{I_B - I_{B0}}{\sigma}}} \right) $$
  * Error function based sigmoidal curve \cite{Caloz.Korzh.ea:2017}
    $$ DE(I_B) = DE_\mathrm{sat}/2 \left( 1 + \mathrm{erf}~{\frac{I_B - I_{B0}}{\sigma}} \right) $$

Unfortunately this models do not catch the "initial" slope of the PCR as e.g. described here (FIXME).


===== Hotspot relaxation =====
^ Time [ps] ^ Group (Date) [Citation] ^ Material ^ Comment^
| ? | Shaw, Mirin, Nam \cite{Marsili.Stevens.ea:2016} | WSi | Investigated the relaxation dynamics. |

===== Latching =====
^ Publication ^ Material ^ Comment^
| \cite{Yang.Kerman.ea:2007} | NbN | Model electrical and thermal response. Decrease the reset time of the SNSPD by adding a series resistance. For Series Resistances above 200Ohm the SNSPD latches.|