Пікірлер

• 
  @theoryandapplication71976 күн бұрын

  thank you very much

• 
  @TurboLoveTrain7 күн бұрын

  Beautiful. λ is one of my favorite variables.

• 
  @oldfiz20 күн бұрын

  In which book one can study the formula for photon lifetime (05:09)

• 
  @Mark-ce9xhАй бұрын

  Beautiful

• 
  @laguerreetlapaix2258Ай бұрын

  ❤❤

• 
  @buckcostanza3483Ай бұрын

  thanks a thousand times!

• 
  @buckcostanza3483Ай бұрын

  wow

• 
  @banajadandasena41422 ай бұрын

  How to calculate Beam waist from the z scan data?

• 
  @GamesTutorials_2 ай бұрын

  He speaks 70's.

• 
  @GamesTutorials_2 ай бұрын

  Btw. Thanks!

• 
  @tomr87792 ай бұрын

  Fantastic video, thank you for making these concepts intuitive. Your teaching in conjunction with the applets makes it very clear.

• 
  @abinashodiya59502 ай бұрын

  Wrong information provided.

• 
  @yosefpatinio36692 ай бұрын

  How an electric field can pass a material?

• 
  @mehmetkayacan32623 ай бұрын

  I want to ask one question .If the phase angle is 180 degree this waves must be linear polarization ?

• 
  @kyleberlin69903 ай бұрын

  you think the robots are going to be racist?

• 
  @douglasstrother65843 ай бұрын

  A detailed discussion of polarizability is found in "Dielectric Matter", Ch. 6 of "Modern Electrodynamics" by Andrew Zangwill.

• 
  @kumarprosenjit97143 ай бұрын

  Very well taught Professor. I am glad to find this online. Thanks a lot.

• 
  @sevabelskyi26913 ай бұрын

  5:46 But I didn't get it. There's still a non-symmetry on the sides of the material, but now vertically. The positive layer will appear on top and the negative at the bottom. And then apparently at 9:05 the incident and absorbed components would become collinear according to this. Doesn't make sense. I mean if we would only focus on mathematical aspects, then circle integral is 0, hence then incident tangential field = tangential absorbed, while normal components are scaled by epsilon from each side and due to that difference in scalars we have a "bending" of the absorbed field inside the material. Idk, however, what happens at the atomic level of things, but in a way it's presented at 5:46, the top and bottom layer of material will be out of pair to be cancelled, hence would induce some vertical field inside the material which would compensate incident field thus cancelling a "bending" of the field inside a material. Its something wrong about the diagram.

• 
  @the400flaws3 ай бұрын

  💚

• 
  @chevestong4 ай бұрын

  Key idea(s): 1) Line Shape g(ν) = Convolution of Probability Density Function (PDF) of Electron State 0 and 1, P₀ * P₁ = P(E₀) * P(E₁). 2) Diagonal State Transitions - These are not possible in semiconductors because of the Heisenberg Uncertainty Principle: - An electron being in either state with a defined energy (i.e., E₀ or E₁) means that there is a definite position (i.e., it's confined in space, maybe to an associated atom and/or because of the forces of other electrons/charges, etc.). In order for a wave (i.e., our electron) to be confined in space (i.e., position), you need an infinite number of waves, each with different frequencies ν, to superpose into the resultant wave function that places your electron at a specific location/position - think of the Fourier transform of the wave in the time domain, i.e., the frequency domain graph/function of the electron's wave function. - The momentum of an electron is given by p = hk = 2πh/λ = 2πνh/c (the de Broglie relation). So, if we require an infinite number of frequencies to confine our electron, we don't have just one value of k; we have an entire (infinite) range of k values. That is, k --> Δk = ∞. This gives us Δp = h Δk = h * ∞ = ∞, which is non-physical, i.e., unrealistic/impossible.

• 
  @christianjourneytv10035 ай бұрын

  clearly. thank you

• 
  @zbesh6 ай бұрын

  great intro to the MTF, thank you for a great explanation!.

• 
  @goldeneye18506 ай бұрын

  Thank you very much !

• 
  @h7opolo6 ай бұрын

  Goid job using technical jargon without ever divulging further explanations to ensure only the prior educated can reap the tiniest benefit from this drivel

• 
  @at09777 ай бұрын

  Can you explain ground loops?

• 
  @at09777 ай бұрын

  Mathematical masterbation... That was funny😂

• 
  @abcdef20697 ай бұрын

  9:18 wish to see E and B plane waves both are present with any imagination, ok to plot them in extra boxes without overlapping, hope to see vectors in them

• 
  @karielf89477 ай бұрын

  Thanks a lot

• 
  @marcoaureliolima43158 ай бұрын

  Muito bom

• 
  @scottmoerschbacher86648 ай бұрын

  Physicist guess more often than you think. We even have a name for it: Ansatz :) Nice vid

• 
  @silvanschnelli15388 ай бұрын

  amazing video thank you

• 
  @ahmednor58069 ай бұрын

  🙏💐💐

• 
  @KaptainLuis9 ай бұрын

  thanks

• 
  @ahmednor580610 ай бұрын

  💐🙏

• 
  @andreaprosdocimo238410 ай бұрын

  Thanks a lot for the explenation, I was reading my notes without understanding anything and you saved me ☺

• 
  @sarsax12311 ай бұрын

  great video

• 
  @ReasonableSwampMonster11 ай бұрын

  I’ve been trying to get an intuition for this since I learned acoustics 2 years ago and I finally got it thank you bro

• 
  @mrhoho11 ай бұрын

  thanks for sharing

• 
  @mrhoho11 ай бұрын

  thanks for sharing

• 
  @ethannguyen3114 Жыл бұрын

  My Hero. Thank you!

• 
  @mrhoho Жыл бұрын

  omg, never thought that 4piR^2 associate with area of sphere. thanks shareing.

• 
  @164procar4 Жыл бұрын

  Clap your hand anytime he say “field”

• 
  @HitAndMissLab Жыл бұрын

  Hmmm, circular electric field exists. Its called EMF and it appears in coild when magnetic field is changing. So, your explanation of "electric fields never swirling" might be in jeopardy?

• 
  @basnetr Жыл бұрын

  What is the textbook you are using?

• 
  @aliaatarek7106 Жыл бұрын

  what is the name of that great professor?

• 
  @bkahraman99 Жыл бұрын

  GREAT VIDEO !!!!!!!!!!!!!!

• 
  @oussamareda414 Жыл бұрын

  thanks for helping me I'm from Morocco it take me time to understand how waves to be plane

• 
  @yolandfathe2863 Жыл бұрын

  SAME wonder that we make in >>>>how votage can be buildt across a coil it is just a wire then we learn that voltage is not because the resistevity of the wrie rather it is due to current struglle to build the megnatic field in the cam the same wonder bulit again how should current cross the cap while its an open circuit same solution the ekectric field is the media by which the current travels this is the most intuitive thing if you get the coil you get the cap

• 
  @ggmb1032 Жыл бұрын

  Thank you so much. I wish everyone teach this topic could teach like you. In your voice and explanation, one can really tell that you are passionate about teaching your students. This attitude is missing in a lot of professors today, especially here in America and yet students pay a lot tuition and other fees for University. But thank so much for passing on this wonderful knowledge. God bless you.

• 
  @warrenchu6319 Жыл бұрын

  Question: If magnetic fields are the result of unequal relativistic contraction of charge densities as seen by a moving charge and only is a manifestation of the electric field in a moving frame, how do we explain the magnetic field produced by an isolated electron? There is an analogy of the spin of the electron having a magnetic field akin to the magnetic field produced by a wire loop. Classically (although we know quantum mechanically the electron is not a point charge), the electron's spin is like the current in the wire loop, but the magnetic field of the wire loop can be explained by bending the straight wire into a loop. All explanations of what causes the electron's own magnetic moment (ratio of magnetic field to mass) is that it is a fundamental property of the electron, which implies magnetic fields are a fundamental force. Are magnetic fields a fundamental force, like electric fields? (I know force is the result of a field acting on a body but I'm using the terms loosely. :-p )

• 
  @adrianamishell5309 Жыл бұрын

  What is the order of the videos? , it is confusing for a person who is just learning