Re: diffraction of light in terms of its electromagnetic nature

Hi,


I think you should review a book, which is called "Fundamentals of Physics 
(Optic Part)"[1]
So, you can understand what the diffraction is..
Actually I'm not able to tell you the diffraction here because of 
restriction of words. However, you can understand by reading.

References

[1]The best book: Fundamentals of Physics: David Halliday,Robert 
Resnick,Jearl Walker by David Halliday,Robert Resnick,Jearl Walker.
[2] Book: Optics: Eugene Hecht.
[3] Book: Principles of Optics: Electromagnetic Theory of Propagation, 
Interference and Diffraction of Light, Max Born 

Best Wishes,