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//Example 8.1
//Program to determine the Quantum efficiency and Responsivity of
//the photodiode
clear;
clc ;
close ;
//Given data
Lambda=0.85*10^-6; //metres - WAVELENGTH
e=1.602*10^(-19); //Coulumbs - CHARGE OF AN ELECTRON
h= 6.626*10^(-34); //J/K - PLANK's CONSTANT
c=2.998*10^8; //m/s - VELOCITY OF LIGHT IN VACCUM
Ne=1.2*10^11; //NUMBER OF ELECTRONS COLLECTED
Np=3*10^11; //NUMBER OF INCIDENT PHOTONS
//Quantum Efficiency
eeta=Ne/Np;
//Responsivity
R=eeta*e*Lambda/(h*c);
//Displaying the Results in Command Window
printf("\n\n\t Quantum Efficiency = %0.1f .",eeta);
printf("\n\n\t Responsivity, R = %0.3f A/W .",R);
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