Detectors of terahertz electromagnetic radiations : Definition of sensitivity, detection noise and dynamic range

Definition of sensitivity, detection noise and dynamic range
Detectors of terahertz electromagnetic radiations

Author : Jean-Louis COUTAZ

Publication date: August 10, 2022 | Lire en français

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3. Definition of sensitivity, detection noise and dynamic range

First, let's recall the relationship between power density D and electric field $\vec{E}$ for an electromagnetic plane wave:

D = \frac{P}{S} = \frac{n {\vec{E}}^{2}}{2 Z_{0}} = n_{phot} h f

^( 1 )

with :

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Definition of sensitivity, detection noise and dynamic range

(1) - SIMOENS (F.) - THz bolometer detectors. - In : Physics and Applications of Terahertz Radiation, Springer, p. 35-75 (2014).
(2) - ROGALSKI (A.) - Infrared detectors. - CRC Press...

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