Recent content by Ngineer

Hello everyone, Is there a straightforward way to determine the electrical properties, such as the dielectric constant (or function), of a molecule (for instance, a metal oxide)? I understand a simple weight-average model wouldn't work for various reasons. Thanks so much!

I have a simple interface between vacuum and a uniaxial crystal. While it was easy to determine the reflection using Fresnel's equations, the analysis needs to be done "using matrices". We are only interested in the TE/TM reflections. Which method works best for this? ABCD/Ray transfer matrix...

Thanks! that was probably it!

I'm not making a claim, I'm asking what went wrong in this particular derivation because I can't figure it out.

For the second medium, εr = μr = 10

Hi Andy, E1 = 5V/M * [0.6,0.8] = [3,4,0] V/M Using the conditions for continuity at the interface: E2x = E1y = 3 E2y = E1y * (epsilon1/epsilon2) = 4 * 1/10 = 0.4 So E2 = [3, 0.4, 0] V/M = 3.02 V/M * [ 0.991, 0.1321, 0 ] For H2, H1 = [0,0,5/377] A/M Hence H2z = H1z * meu1/meu2 = 0.5/377 A/M...

Hi everyone, Someone posted this hypothetical problem on a facebook group and I am wondering what your thoughts are. The issue is that Snell's law does not seem to hold when applied to the transmitted wave (calculated using the electromagnetic interface conditions.) Here is an example...

I just need to confirm my intuition that the magnetic force on the wire carrying I2 is 0. Basis for my intuition: * Right above the center of the loop carrying I1, the magnetic field lines are in exactly the same direction as the piece of wire carrying I2, so [a] x [B1] = 0. (photo from...

Yes. I have actually corresponded with the professor that posted the online lectures I linked in the original post, and he kindly answered in detail, so I marked this post as solved. Thanks for your kind help.

I read in various sources (such as page 8 of these notes) that the dielectric permittivity tensor of a lossless medium is always symmetric. I am wondering how this can be the case, when: Phase accumulation in the medium could in theory depend on direction Coordinate system may be rotated to...

Thank you for your response, the definition of the Fourier transform is The derivation checks out if it is assumed to be separable with respect to t' and t''

Homework Statement Starting with the second order polarization in the time domain: (1) I am trying derive the frequency domain form: (2) Multiple sources give essentially the same formula with the same integral, I have obtained the particular ones in here from those lecture notes. My...

Hi jedishrfu, Thanks for your response and the valuable advice, highly appreciated! Unfortunately, I don't think my company offers such benefits, so I have to try on my own.

Hello everyone, Last year, I graduated with an Electrical Engineering degree from a Canadian university with a horrible GPA of 2.62 (reasons why I got this gpa explained here) I have never forgotten about the dream of finally getting into graduate studies, mainly in the field of...

Hello everyone, My dilemma is: - I am a volunteer researcher with a professor in a lab - I received a full-time job offer from a company. I need to keep the research position because it greatly increases my chances of being admitted to grad school, and very closely related to my field of...