Lecture 10: Bolometers - Leiden Observatory
Lecture 10: Bolometers - Leiden Observatory
Lecture 10: Bolometers - Leiden Observatory
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Detection of Light: <strong>Lecture</strong> <strong>10</strong><br />
Electrical Responsivity<br />
Let dR, dT and dV be the changes in resistance, temperature and voltage<br />
across the bolometer, caused by the absorbed power dP.<br />
So, we get:<br />
dV = IdR= I[ (T )RdT]= (T )V dT=<br />
with Rieke p.244:<br />
SE = dV<br />
dP =<br />
dT =<br />
(T )V<br />
G (T )PI<br />
(T )V dP<br />
G (T )PI<br />
dP<br />
G (T )PI<br />
The responsivity is completely determined by the electrical properties of<br />
the detector (so this is also called electrical responsivity)
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