Recent content by amir11

Thanks for the reply. It is an electromagnetic source of energy, but this dose not mean that it behaves the same way as a dipole, neither it means that a combination of clock and counterclockwise current loops will give a linear dipole. I am kind of looking for a solid mathematical argument.

I also think that it shuld be just a linear combinition of the two right and left propagating currents that give the solution but I can't derive it mathematically. Any suggestion?

Hello Physics enthusiasts Imagine an infinitesimal small current loop where the current can run clockwise or counterclockwise at frequency v. I am trying to find a linear combination of the two(current loops) which creates the same electric field pattern (far from the dipole) as a very small...

Dear ForumersI am having a bit problem understanding the phase relation between current source and the generated eletromagnetic field components. Assume a very small current element( a very small current running in direction x)(essentially an electric dipole) in a non-homogenous loss periodic...

Dear Forum members I have a question regarding the stratton-chu integral to calculate the farfield radiation pattern from a dipole. The theory works very well for the homogeneous medium, i.e if the emitter can be considered to be embedded in a homogenous medium. My question is if it is...

Hi Guys I have a very simple and basic question. Assume interface of two dielectric mediums. If the t is transmition cofficient for electricfield from medium 1 to medium 2 with refractive indexs n1 and n2, what is the transmitivity of power from medium 1 to medium 2? I know it is...

Could these discussions simply mean that it is not possible to create a field with amplitude 2A by combing 2 waves of A amplitude?! And one more I know that people can create y branch beam splitters using photonic crystals and they get very close to 50% in each arms! But this would then require...

In no sense do I mean to say that conservation law is wrong, That is definitely right. In very simple words what I mean is that superposition principle for electromagnetic fields is NOT consistent with energy conservation law! That is if you double the amplitude of a field you get for times the...

OK so sorry for my previous response but that is due to a previous experience. the scenario I am putting forward is some how different form a simple beam splitter, in that a beam splitter is essential a four port element, two input two out but and it is obvious if you write down the governing...

Ooops. this happened to me once before in this forum too. I aksed a question about CI in quantum dots. A guy popped out of nowhere saying that this is not possible and it is very so and so and I have no understanding of the theory of CI and wasted my time for a while. But later another guy came...

you are simply trying to persuade me that 2+2 is not 4! This is the most basic question to ask in theory and the fact that you give such a silly answer to it, you are simply saying that physics has no answer it, is really unacceptable, I urge you no to answer question you don't know the answer to!

Thx for your reply. But This is not a good answer. In theory you can assume that the two beams are sumed perfectly and have the same phase everywhere.

I have a very basic question about wave interference and more specifically electromagnetic wave interference. Suppose two beams of light each with amplitude A interfere with the same phase. the amplitude of the resulting beam is 2A. the two beams at the start have powers p= A^{2} each. The...

Thanks for your kind replay. I will check them.

I wonder why you inseast that the method is not used and at all wether you have any background or knowldge in solid state calcs. I should inform you that there are many publications where the CI is the method of choice e.g.: Excitonic and biexcitonic properties of single GaN quantumdots...