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// Example 5.27
// Computation of (a)resposivity (b)output current and (c)multiplication factor
// Page no 488
clc;
clear;
close;
//Given data
e=0.7; // Quantum efficiency
c=3*10^8; // Speed of light
h=6.62*10^-34 // Planck constant
E=1.5*10^-19; // Energy of photons
lambda=0.85*10^-6 // Wavelength of laser source
P=0.6*10^-6; // Incident light power
e1=1.6*10^-19; // Electronic charge
I=10*10^-6; // Output current of the device
// (a) Responsivity
R=e*(lambda*e1)/(h*c);
// (b) Photocurrent
Ip=R*P;
// (c) Multiplication factor
M=I/Ip
//Display result on command window
printf("\n Responsivity R (A/W) = %0.3f ",R);
printf("\n Output current Ip (microA) = %0.3f ",Ip*10^6);
printf("\n Multiplication factor M = %0.0f ",M);
//Calculation mistake in (b)Phtocurrent in the book
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