A laser beam of 0.02 W with photon energy of 1.6 eV is incident on a GaAs PIN phot-detector. The detector i-region width is 6 pum, its cross sectional area is A=0.8 cm2, and its absorption coefficient at the incident photon energy is aGaAs =1 x 10° cm. If 20\% of the incident photon flux is reflected back at the detector surface, calculate the detector photo-current I: %3D Select one: O A. IL = 0.00361 A %3D O B. IL = 0.00520 A C. IL = 3.20e-4 A O D. IL = 0.00920 A Activate Windows %3D

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A laser beam of 0.02 W with photon energy of 1.6 eV is incident on a GaAs PIN phot-detector. The detector
i-region width is 6 um, its cross sectional area is A = 0.8 cm?, and its absorption coefficient at the incident
photon energy is aGaAs =1 x 10 cm1. If 20\% of the incident photon flux is reflected back at the detector
surface, calculate the detector photo-current I:
%3D
Select one:
O A. IL = 0.00361 A
OB. IL = 0.00520 A
%3D
O C. IL 3.20e-4 A
O D. IL = 0.00920 A
Activate Windows
CH-n00220 A
Transcribed Image Text:A laser beam of 0.02 W with photon energy of 1.6 eV is incident on a GaAs PIN phot-detector. The detector i-region width is 6 um, its cross sectional area is A = 0.8 cm?, and its absorption coefficient at the incident photon energy is aGaAs =1 x 10 cm1. If 20\% of the incident photon flux is reflected back at the detector surface, calculate the detector photo-current I: %3D Select one: O A. IL = 0.00361 A OB. IL = 0.00520 A %3D O C. IL 3.20e-4 A O D. IL = 0.00920 A Activate Windows CH-n00220 A
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