ANSWER ALL QUESTIONS Match each term with the appropriate phrase. Responsivity R
ID: 1486959 • Letter: A
Question
ANSWER ALL QUESTIONS
Match each term with the appropriate phrase.
Responsivity
Recovery time
Johnson noise
Quantum efficiency
Shot noise
Spectral response
Nep
1/f noise
Detectivity
Saturation
Photon noise
Internal noise
Square root of the detector are per unit value of NEP
Answer 1
Defines how the performance of a detector (responsivity and detectivity) varies with wavelength
Answer 2
Ratio of countable events produced by photons incident on the detector to the number of incident photons
Answer 3
Time it takes for the photocurrent to fall to 36.8% of the steady state value when light is turned off
Answer 4
External noise that poses the ultimate fundamental limit to the detectivity of a photodetector
Answer 5
Detector output per unit of input power
Answer 6
All noise generated within the detection system itself
Answer 7
Time it takes detector current to rise to a value equal to 63.2% of the steady state value
Answer 8
Results from the random motion of electrons in a conductor
Answer 9
Optical power that produces a signal voltage equivalent to the noise voltage of the detector
Answer 10
Noise created by the random fluctuation of electrons arriving at the anode
Answer 11
Exceeds shot noise at frequencies below a few hundred Hertz
Answer 12
Results in no further increase in detector response as the input light intensity is increased
Answer 13
Explanation / Answer
Answer 1 : Detectivity
Answer 11 : Shot noise
Answer 12 : 1/f noise
Answer 13 : Saturation
Answer 10 :Nep
Answer 7 : Internal noise
Answer 1 : Detectivity
Answer 6 :Responsivity
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