MOHD
22 total contributions since 2012
MOHD ABDUL GAFFAR
IITG
Professional Interests: Optical image processing
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Awarded to MOHD on 09 Oct 2019
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Awarded to MOHD on 20 Jul 2017
Question
How to calculate the area of dark core of intensity distribution at Full width at half maximum?, which has ring like structure.
Hello sir, I have to calculate the area of dark core of intensity distribution at Full width at half maximum, which has ring li...
2 years ago | 1 answer | 0
1
answerQuestion
How to stop for loop if E approximately = 0.8.?
clc; clear all; close all; [x,y]=meshgrid(-1:2/128:1); circ=(x.^2+y.^2)<1; A=ones(129,129); B=A.*circ; a1...
5 years ago | 1 answer | 0
1
answerQuestion
I have intensity image , how to find half energy width of image.
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5 years ago | 1 answer | 0
1
answerQuestion
How can I draw poincare sphere using stokes parameters?
How can I draw poincare sphere using stokes parameters
6 years ago | 0 answers | 0
0
answersQuestion
How to implementation DFT (discrete fourier transform) to intensity?
Here I am trying to calculate intensity of Xpolarized light by using DFT (discrete fourier transform) instead of fft, by us...
7 years ago | 1 answer | 0
1
answerQuestion
How to calculate Discrete Fourier transform of a matrix by numerically?
Here I am able write code to find out DFT of array numerically with out using for loop(2 nd for loop), I am facing problem to f...
7 years ago | 0 answers | 0
0
answersQuestion
How to select matrix elements along aritrary angle i.e (Any angle between 0 and 90 degree except 0,90,45 deg ) ?
# clear all; # clc; # close all; # [kx,ky]=meshgrid(-1:2/21:1); # # circ=sqrt(kx.^2+ky.^2)<1; # alp=asin(0.95); # # ...
7 years ago | 1 answer | 0
1
answerQuestion
How can I create a movie from the following program?
clear all; clc; close all; dim=32; [kx,ky]=meshgrid(-3:6/(dim-1):3); circ=sqrt(kx.^2+ky.^2)<1; r=sqrt(kx.^2+ky.^2); alp=a...
8 years ago | 1 answer | 0
1
answerQuestion
How we can display images at different times by using for loop instead of following program and how we can make movie from following program?
clear all; clc; close all; dim=32; [kx,ky]=meshgrid(-3:6/(dim-1):3); circ=sqrt(kx.^2+ky.^2)<1; r=sqrt(kx.^2+ky...
8 years ago | 0 answers | 0
0
answersQuestion
How we can display images at different times by using for loop instead of following program and how we can make movie from following program?
# clear all; # clc; # close all; # dim=32; # [kx,ky]=meshgrid(-3:6/(dim-1):3); # circ=sqrt(kx.^2+ky.^2)<1; # r=sqrt(kx.^2+...
8 years ago | 1 answer | 0
1
answerQuestion
how to increase magnification of images 2,3,4?
clear all; clc; close all; dim=32; [kx,ky]=meshgrid(-1:2/(dim-1):1); circ=sqrt(kx.^2+ky.^2)<1; alp=asin(0.95);...
8 years ago | 1 answer | 0
1
answerQuestion
How to perform integral ?
clear all; clc; close all; dim=64; L=531*10^-9; k=2*pi/L; [x,y]=meshgrid(-L:2*L/(dim-1):L); r=sqrt(x.^2+y.^...
8 years ago | 0 answers | 0
0
answersQuestion
How to find out the position matrix from Intensity matrix?
Hi sir, I sending following program by using this I am finding intensity in the focal plane for an X-polarized (linearly po...
8 years ago | 0 answers | 0
0
answersQuestion
How to replace a matrix element
Hi, I am having a particular problem in the foll matrix: A=[-1 1 0 0 0; 0 -1 1 0 0; 0 0 0 -1 1; -1 1 0 0 0]...
8 years ago | 1 answer | 0
1
answerQuestion
How to plot poynting vector profile by using electric and magnetic filed components ?
HERE I AM ADDING CODE here I have to plot Quiver plot for poynting vector components Sy,Sz; how to get position matrices...
8 years ago | 0 answers | 0
0
answersQuestion
how to perform for loop;
dim=64; [kx,ky]=meshgrid(-1:2/(dim-1):1); circ=sqrt(kx.^2+ky.^2)<1; kx=kx/2; ky=ky/2; a...
8 years ago | 0 answers | 0
0
answersQuestion
how to get cross product of two vectors?
hi, I have problem to find out crossproduct of two vectors(AXB), where each component of vector represent 4X4 matrix example...
8 years ago | 1 answer | 0
1
answerQuestion
How to get cross product?
Hi, I have problem in follolowing code,can any one help me to get cross product of E and B clear all; clc; close a...
8 years ago | 1 answer | 0
1
answerQuestion
HOW TO GET TOTAL DATA FROM FOR LOOP?
Hi, I have problem in following code, I am saving for loop data using the following method(matrix method) but it is lengt...
8 years ago | 1 answer | 0
1
answerQuestion
How to find out the separation between to peaks of the azimuthally polarised beam at full width at half maximum?
hi, I have problem to find separation between two peaks at full width at half maximum, if you run following code you find figure...
8 years ago | 0 answers | 0
0
answersQuestion
How to find out the separation between to peaks of the azimuthally polarised beam at full width at half maxiumu?
Hi, I have problem in the following code, can anyone help me in this regard, it is great help for me; [kx,ky]=meshgrid(-1:...
8 years ago | 0 answers | 0
0
answersQuestion
HOW TO FIND THE FULL WIDTH AT HALF MAXIMUM
Hi, I have a problem in the following code: clear all; clc; close all; lamda=531e-9; k=2*pi/lamda; [x,y]=...
8 years ago | 1 answer | 0
1
answer
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