Ewald's sphere

This video describes Ewald's sphere construction in reciprocal space.

Prerequiste:

[durgateja]

Sir what an excellent explanation
No hurry no tension
Peacefully explained
Enjoyed your lecture

[ice]

just fantastic, Ewald sphere remained elusive in my physics course, until now that you explained it in a couple of minutes! But I think there is 1 mistake: the length of G*hkl vector should be 2pi/dhkl instead of just 1/dhkl, in order for the scattering condition G*T = 2 pi m, where m is integer and T is lattice vector, to hold. Correspondingly the length of CO or any other of those scattering vectors has to be 2 pi / lambda instead of just 1/lambda

[pri]

Much satisfied with your lecture. Thank you sir 😊

[luciasevillarodriguez]

very very good explanation, very easy to follow and with all the concepts explain clearly, thank you very much!

[paulboro]

I hated solid state physics at first, you made me fall in love with it.

[swagatkumarpani]

So alternatively we can say that diffraction occurs when one end of incident wave vector touches the bragg plane or the brilluone zone boundary.

[SharifulIslam-spxn]

Now I can able to feel this. Thank u sir🥰

[kanikaKANIKA-ytmg]

Thanku sir so much.... I was struggling alot to understand this topic...

[deepankarpanda]

Thank you sir for this video. Sir can you please share the video lecture related to stereograhic projections of cubic as well as hcp metals.
With regards,
Deepankar Panda

[GATE-ivyj]

Dear sir, at 11:41, in step number 2, you mentioned taking the incident wave vector Ki with its head at O. If suppose, the direction of incident beam is along [111] of a Cubic P lattice in real space, how to consider the direction of wave vector Ki in reciprocal space?

[insunghan]

Thanks for the nice lecture. How can we correlate the Ewald's sphere construction with TEM diffraction patterns?

[Neeraj-isjt]

Sir at 7:28 you have chosen the origin as 'O' but the diffracted wave at reciprocal lattice point 'Q' is drawn w.r.t to 'C', why is it so?
Sir also plz elaborate the difference b/w point O and C??

[nazishahmad]

Can anyone tell how this type of simple videos can be made ?

[subrahmanyantolman]

how is it possible to talk so slow? Nearly fell asleep